Home / 10,642.55-14,686.49-6,665.85

Finding the Fourth Proportional to 10,642.55, 14,686.49 and 6,665.85

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Solution

The fourth proportional to 10,642.55, 14,686.49 and 6,665.85 is: 9,198.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.55 : 14,686.49 = 6,665.85 : x
  2. Step 2: Convert to fraction form
    10,642.55/14,686.49 = 6,665.85/x
  3. Step 3: Cross multiply
    10,642.55x = 14,686.49 × 6,665.85
  4. Step 4: Simplify right side
    10,642.55x = 97,897,956.03
  5. Step 5: Solve for x
    x = 97,897,956.03/10,642.55
  6. Step 6: Final answer
    x = 9,198.74

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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.