Home / 10,897.11-16,312.86-9,857.61

Finding the Fourth Proportional to 10,897.11, 16,312.86 and 9,857.61

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Solution

The fourth proportional to 10,897.11, 16,312.86 and 9,857.61 is: 14,756.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,897.11 : 16,312.86 = 9,857.61 : x
  2. Step 2: Convert to fraction form
    10,897.11/16,312.86 = 9,857.61/x
  3. Step 3: Cross multiply
    10,897.11x = 16,312.86 × 9,857.61
  4. Step 4: Simplify right side
    10,897.11x = 160,805,811.86
  5. Step 5: Solve for x
    x = 160,805,811.86/10,897.11
  6. Step 6: Final answer
    x = 14,756.74

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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.