Home / 10,877.28-16,306.50-6,485.51

Finding the Fourth Proportional to 10,877.28, 16,306.50 and 6,485.51

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Solution

The fourth proportional to 10,877.28, 16,306.50 and 6,485.51 is: 9,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.28 : 16,306.50 = 6,485.51 : x
  2. Step 2: Convert to fraction form
    10,877.28/16,306.50 = 6,485.51/x
  3. Step 3: Cross multiply
    10,877.28x = 16,306.50 × 6,485.51
  4. Step 4: Simplify right side
    10,877.28x = 105,755,968.82
  5. Step 5: Solve for x
    x = 105,755,968.82/10,877.28
  6. Step 6: Final answer
    x = 9,722.65

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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.