Home / 10,559.28-15,831.10-6,398.29

Finding the Fourth Proportional to 10,559.28, 15,831.10 and 6,398.29

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Solution

The fourth proportional to 10,559.28, 15,831.10 and 6,398.29 is: 9,592.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,559.28 : 15,831.10 = 6,398.29 : x
  2. Step 2: Convert to fraction form
    10,559.28/15,831.10 = 6,398.29/x
  3. Step 3: Cross multiply
    10,559.28x = 15,831.10 × 6,398.29
  4. Step 4: Simplify right side
    10,559.28x = 101,291,968.82
  5. Step 5: Solve for x
    x = 101,291,968.82/10,559.28
  6. Step 6: Final answer
    x = 9,592.70

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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.