Home / 10,885.71-16,306.53-9,125.72

Finding the Fourth Proportional to 10,885.71, 16,306.53 and 9,125.72

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Solution

The fourth proportional to 10,885.71, 16,306.53 and 9,125.72 is: 13,670.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.71 : 16,306.53 = 9,125.72 : x
  2. Step 2: Convert to fraction form
    10,885.71/16,306.53 = 9,125.72/x
  3. Step 3: Cross multiply
    10,885.71x = 16,306.53 × 9,125.72
  4. Step 4: Simplify right side
    10,885.71x = 148,808,826.95
  5. Step 5: Solve for x
    x = 148,808,826.95/10,885.71
  6. Step 6: Final answer
    x = 13,670.11

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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.