Home / 10,629.60-15,925.20-9,400.80

Finding the Fourth Proportional to 10,629.60, 15,925.20 and 9,400.80

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Solution

The fourth proportional to 10,629.60, 15,925.20 and 9,400.80 is: 14,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.60 : 15,925.20 = 9,400.80 : x
  2. Step 2: Convert to fraction form
    10,629.60/15,925.20 = 9,400.80/x
  3. Step 3: Cross multiply
    10,629.60x = 15,925.20 × 9,400.80
  4. Step 4: Simplify right side
    10,629.60x = 149,709,620.16
  5. Step 5: Solve for x
    x = 149,709,620.16/10,629.60
  6. Step 6: Final answer
    x = 14,084.22

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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.