Home / 10,712.86-16,068.68-2,921.06

Finding the Fourth Proportional to 10,712.86, 16,068.68 and 2,921.06

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Solution

The fourth proportional to 10,712.86, 16,068.68 and 2,921.06 is: 4,381.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.86 : 16,068.68 = 2,921.06 : x
  2. Step 2: Convert to fraction form
    10,712.86/16,068.68 = 2,921.06/x
  3. Step 3: Cross multiply
    10,712.86x = 16,068.68 × 2,921.06
  4. Step 4: Simplify right side
    10,712.86x = 46,937,614.92
  5. Step 5: Solve for x
    x = 46,937,614.92/10,712.86
  6. Step 6: Final answer
    x = 4,381.43

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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.