Home / 10,402.49-14,355.29-5,686.74

Finding the Fourth Proportional to 10,402.49, 14,355.29 and 5,686.74

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Solution

The fourth proportional to 10,402.49, 14,355.29 and 5,686.74 is: 7,847.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402.49 : 14,355.29 = 5,686.74 : x
  2. Step 2: Convert to fraction form
    10,402.49/14,355.29 = 5,686.74/x
  3. Step 3: Cross multiply
    10,402.49x = 14,355.29 × 5,686.74
  4. Step 4: Simplify right side
    10,402.49x = 81,634,816.07
  5. Step 5: Solve for x
    x = 81,634,816.07/10,402.49
  6. Step 6: Final answer
    x = 7,847.62

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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.