Home / 13,270.60-19,905.90-9,123.40

Finding the Fourth Proportional to 13,270.60, 19,905.90 and 9,123.40

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Solution

The fourth proportional to 13,270.60, 19,905.90 and 9,123.40 is: 13,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.60 : 19,905.90 = 9,123.40 : x
  2. Step 2: Convert to fraction form
    13,270.60/19,905.90 = 9,123.40/x
  3. Step 3: Cross multiply
    13,270.60x = 19,905.90 × 9,123.40
  4. Step 4: Simplify right side
    13,270.60x = 181,609,488.06
  5. Step 5: Solve for x
    x = 181,609,488.06/13,270.60
  6. Step 6: Final answer
    x = 13,685.10

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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.