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Finding the Fourth Proportional to 10,897.80, 16,352.90 and 9,071.04

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Solution

The fourth proportional to 10,897.80, 16,352.90 and 9,071.04 is: 13,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,897.80 : 16,352.90 = 9,071.04 : x
  2. Step 2: Convert to fraction form
    10,897.80/16,352.90 = 9,071.04/x
  3. Step 3: Cross multiply
    10,897.80x = 16,352.90 × 9,071.04
  4. Step 4: Simplify right side
    10,897.80x = 148,337,810.02
  5. Step 5: Solve for x
    x = 148,337,810.02/10,897.80
  6. Step 6: Final answer
    x = 13,611.72

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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.