Home / 7,507.40-11,261.10-7,187.45

Finding the Fourth Proportional to 7,507.40, 11,261.10 and 7,187.45

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Solution

The fourth proportional to 7,507.40, 11,261.10 and 7,187.45 is: 10,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,507.40 : 11,261.10 = 7,187.45 : x
  2. Step 2: Convert to fraction form
    7,507.40/11,261.10 = 7,187.45/x
  3. Step 3: Cross multiply
    7,507.40x = 11,261.10 × 7,187.45
  4. Step 4: Simplify right side
    7,507.40x = 80,938,593.20
  5. Step 5: Solve for x
    x = 80,938,593.20/7,507.40
  6. Step 6: Final answer
    x = 10,781.18

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.