Home / 12,445.52-18,668.40-7,248.08

Finding the Fourth Proportional to 12,445.52, 18,668.40 and 7,248.08

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Solution

The fourth proportional to 12,445.52, 18,668.40 and 7,248.08 is: 10,872.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.52 : 18,668.40 = 7,248.08 : x
  2. Step 2: Convert to fraction form
    12,445.52/18,668.40 = 7,248.08/x
  3. Step 3: Cross multiply
    12,445.52x = 18,668.40 × 7,248.08
  4. Step 4: Simplify right side
    12,445.52x = 135,310,056.67
  5. Step 5: Solve for x
    x = 135,310,056.67/12,445.52
  6. Step 6: Final answer
    x = 10,872.19

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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.