Home / 10,403.30-14,356.59-5,687.66

Finding the Fourth Proportional to 10,403.30, 14,356.59 and 5,687.66

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Solution

The fourth proportional to 10,403.30, 14,356.59 and 5,687.66 is: 7,848.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,403.30 : 14,356.59 = 5,687.66 : x
  2. Step 2: Convert to fraction form
    10,403.30/14,356.59 = 5,687.66/x
  3. Step 3: Cross multiply
    10,403.30x = 14,356.59 × 5,687.66
  4. Step 4: Simplify right side
    10,403.30x = 81,655,402.68
  5. Step 5: Solve for x
    x = 81,655,402.68/10,403.30
  6. Step 6: Final answer
    x = 7,848.99

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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.