Home / 10,720.56-16,061.64-6,607.92

Finding the Fourth Proportional to 10,720.56, 16,061.64 and 6,607.92

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Solution

The fourth proportional to 10,720.56, 16,061.64 and 6,607.92 is: 9,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.56 : 16,061.64 = 6,607.92 : x
  2. Step 2: Convert to fraction form
    10,720.56/16,061.64 = 6,607.92/x
  3. Step 3: Cross multiply
    10,720.56x = 16,061.64 × 6,607.92
  4. Step 4: Simplify right side
    10,720.56x = 106,134,032.19
  5. Step 5: Solve for x
    x = 106,134,032.19/10,720.56
  6. Step 6: Final answer
    x = 9,900.05

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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.