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Finding the Fourth Proportional to 10,774.80, 16,071.50 and 10,446.80

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Solution

The fourth proportional to 10,774.80, 16,071.50 and 10,446.80 is: 15,582.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,774.80 : 16,071.50 = 10,446.80 : x
  2. Step 2: Convert to fraction form
    10,774.80/16,071.50 = 10,446.80/x
  3. Step 3: Cross multiply
    10,774.80x = 16,071.50 × 10,446.80
  4. Step 4: Simplify right side
    10,774.80x = 167,895,746.20
  5. Step 5: Solve for x
    x = 167,895,746.20/10,774.80
  6. Step 6: Final answer
    x = 15,582.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.