Home / 10,402.28-14,355.21-5,686.58

Finding the Fourth Proportional to 10,402.28, 14,355.21 and 5,686.58

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Solution

The fourth proportional to 10,402.28, 14,355.21 and 5,686.58 is: 7,847.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402.28 : 14,355.21 = 5,686.58 : x
  2. Step 2: Convert to fraction form
    10,402.28/14,355.21 = 5,686.58/x
  3. Step 3: Cross multiply
    10,402.28x = 14,355.21 × 5,686.58
  4. Step 4: Simplify right side
    10,402.28x = 81,632,050.08
  5. Step 5: Solve for x
    x = 81,632,050.08/10,402.28
  6. Step 6: Final answer
    x = 7,847.52

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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.