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Finding the Fourth Proportional to 10,862.60, 16,269.60 and 9,404.60

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Solution

The fourth proportional to 10,862.60, 16,269.60 and 9,404.60 is: 14,085.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.60 : 16,269.60 = 9,404.60 : x
  2. Step 2: Convert to fraction form
    10,862.60/16,269.60 = 9,404.60/x
  3. Step 3: Cross multiply
    10,862.60x = 16,269.60 × 9,404.60
  4. Step 4: Simplify right side
    10,862.60x = 153,009,080.16
  5. Step 5: Solve for x
    x = 153,009,080.16/10,862.60
  6. Step 6: Final answer
    x = 14,085.86

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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.