Home / 12,553.60-18,838.40-5,987.20

Finding the Fourth Proportional to 12,553.60, 18,838.40 and 5,987.20

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Solution

The fourth proportional to 12,553.60, 18,838.40 and 5,987.20 is: 8,984.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.60 : 18,838.40 = 5,987.20 : x
  2. Step 2: Convert to fraction form
    12,553.60/18,838.40 = 5,987.20/x
  3. Step 3: Cross multiply
    12,553.60x = 18,838.40 × 5,987.20
  4. Step 4: Simplify right side
    12,553.60x = 112,789,268.48
  5. Step 5: Solve for x
    x = 112,789,268.48/12,553.60
  6. Step 6: Final answer
    x = 8,984.62

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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.