Home / 9,422.55-13,001.45-5,442.21

Finding the Fourth Proportional to 9,422.55, 13,001.45 and 5,442.21

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Solution

The fourth proportional to 9,422.55, 13,001.45 and 5,442.21 is: 7,509.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,422.55 : 13,001.45 = 5,442.21 : x
  2. Step 2: Convert to fraction form
    9,422.55/13,001.45 = 5,442.21/x
  3. Step 3: Cross multiply
    9,422.55x = 13,001.45 × 5,442.21
  4. Step 4: Simplify right side
    9,422.55x = 70,756,593.99
  5. Step 5: Solve for x
    x = 70,756,593.99/9,422.55
  6. Step 6: Final answer
    x = 7,509.28

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Half scale
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Double scale
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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.