Home / 15,487.18-23,239.88-6,128.10

Finding the Fourth Proportional to 15,487.18, 23,239.88 and 6,128.10

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Solution

The fourth proportional to 15,487.18, 23,239.88 and 6,128.10 is: 9,195.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487.18 : 23,239.88 = 6,128.10 : x
  2. Step 2: Convert to fraction form
    15,487.18/23,239.88 = 6,128.10/x
  3. Step 3: Cross multiply
    15,487.18x = 23,239.88 × 6,128.10
  4. Step 4: Simplify right side
    15,487.18x = 142,416,308.63
  5. Step 5: Solve for x
    x = 142,416,308.63/15,487.18
  6. Step 6: Final answer
    x = 9,195.75

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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.