Home / 12,531.04-18,801.48-5,139.04

Finding the Fourth Proportional to 12,531.04, 18,801.48 and 5,139.04

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Solution

The fourth proportional to 12,531.04, 18,801.48 and 5,139.04 is: 7,710.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.04 : 18,801.48 = 5,139.04 : x
  2. Step 2: Convert to fraction form
    12,531.04/18,801.48 = 5,139.04/x
  3. Step 3: Cross multiply
    12,531.04x = 18,801.48 × 5,139.04
  4. Step 4: Simplify right side
    12,531.04x = 96,621,557.78
  5. Step 5: Solve for x
    x = 96,621,557.78/12,531.04
  6. Step 6: Final answer
    x = 7,710.58

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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.