Home / 15,785.60-23,678.40-9,948.80

Finding the Fourth Proportional to 15,785.60, 23,678.40 and 9,948.80

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Solution

The fourth proportional to 15,785.60, 23,678.40 and 9,948.80 is: 14,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,785.60 : 23,678.40 = 9,948.80 : x
  2. Step 2: Convert to fraction form
    15,785.60/23,678.40 = 9,948.80/x
  3. Step 3: Cross multiply
    15,785.60x = 23,678.40 × 9,948.80
  4. Step 4: Simplify right side
    15,785.60x = 235,571,665.92
  5. Step 5: Solve for x
    x = 235,571,665.92/15,785.60
  6. Step 6: Final answer
    x = 14,923.20

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Similar ratio
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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.