Home / 15,987.60-23,972.40-6,127.20

Finding the Fourth Proportional to 15,987.60, 23,972.40 and 6,127.20

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Solution

The fourth proportional to 15,987.60, 23,972.40 and 6,127.20 is: 9,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.60 : 23,972.40 = 6,127.20 : x
  2. Step 2: Convert to fraction form
    15,987.60/23,972.40 = 6,127.20/x
  3. Step 3: Cross multiply
    15,987.60x = 23,972.40 × 6,127.20
  4. Step 4: Simplify right side
    15,987.60x = 146,883,689.28
  5. Step 5: Solve for x
    x = 146,883,689.28/15,987.60
  6. Step 6: Final answer
    x = 9,187.35

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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.