Home / 12,515.24-17,274.48-7,482.90

Finding the Fourth Proportional to 12,515.24, 17,274.48 and 7,482.90

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Solution

The fourth proportional to 12,515.24, 17,274.48 and 7,482.90 is: 10,328.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.24 : 17,274.48 = 7,482.90 : x
  2. Step 2: Convert to fraction form
    12,515.24/17,274.48 = 7,482.90/x
  3. Step 3: Cross multiply
    12,515.24x = 17,274.48 × 7,482.90
  4. Step 4: Simplify right side
    12,515.24x = 129,263,206.39
  5. Step 5: Solve for x
    x = 129,263,206.39/12,515.24
  6. Step 6: Final answer
    x = 10,328.46

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.