Home / 15,905.60-23,858.40-9,339.20

Finding the Fourth Proportional to 15,905.60, 23,858.40 and 9,339.20

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Solution

The fourth proportional to 15,905.60, 23,858.40 and 9,339.20 is: 14,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.60 : 23,858.40 = 9,339.20 : x
  2. Step 2: Convert to fraction form
    15,905.60/23,858.40 = 9,339.20/x
  3. Step 3: Cross multiply
    15,905.60x = 23,858.40 × 9,339.20
  4. Step 4: Simplify right side
    15,905.60x = 222,818,369.28
  5. Step 5: Solve for x
    x = 222,818,369.28/15,905.60
  6. Step 6: Final answer
    x = 14,008.80

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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.