Home / 10,397.60-15,572.10-10,188.80

Finding the Fourth Proportional to 10,397.60, 15,572.10 and 10,188.80

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Solution

The fourth proportional to 10,397.60, 15,572.10 and 10,188.80 is: 15,259.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,397.60 : 15,572.10 = 10,188.80 : x
  2. Step 2: Convert to fraction form
    10,397.60/15,572.10 = 10,188.80/x
  3. Step 3: Cross multiply
    10,397.60x = 15,572.10 × 10,188.80
  4. Step 4: Simplify right side
    10,397.60x = 158,661,012.48
  5. Step 5: Solve for x
    x = 158,661,012.48/10,397.60
  6. Step 6: Final answer
    x = 15,259.39

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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.