Home / 13,446.60-18,557.10-7,478.93

Finding the Fourth Proportional to 13,446.60, 18,557.10 and 7,478.93

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Solution

The fourth proportional to 13,446.60, 18,557.10 and 7,478.93 is: 10,321.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.60 : 18,557.10 = 7,478.93 : x
  2. Step 2: Convert to fraction form
    13,446.60/18,557.10 = 7,478.93/x
  3. Step 3: Cross multiply
    13,446.60x = 18,557.10 × 7,478.93
  4. Step 4: Simplify right side
    13,446.60x = 138,787,159.12
  5. Step 5: Solve for x
    x = 138,787,159.12/13,446.60
  6. Step 6: Final answer
    x = 10,321.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.