Home / 10,713.03-14,781.59-6,464.78

Finding the Fourth Proportional to 10,713.03, 14,781.59 and 6,464.78

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Solution

The fourth proportional to 10,713.03, 14,781.59 and 6,464.78 is: 8,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,713.03 : 14,781.59 = 6,464.78 : x
  2. Step 2: Convert to fraction form
    10,713.03/14,781.59 = 6,464.78/x
  3. Step 3: Cross multiply
    10,713.03x = 14,781.59 × 6,464.78
  4. Step 4: Simplify right side
    10,713.03x = 95,559,700.84
  5. Step 5: Solve for x
    x = 95,559,700.84/10,713.03
  6. Step 6: Final answer
    x = 8,919.95

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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.