Home / 15,459.53-23,158.38-7,128.14

Finding the Fourth Proportional to 15,459.53, 23,158.38 and 7,128.14

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Solution

The fourth proportional to 15,459.53, 23,158.38 and 7,128.14 is: 10,677.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.53 : 23,158.38 = 7,128.14 : x
  2. Step 2: Convert to fraction form
    15,459.53/23,158.38 = 7,128.14/x
  3. Step 3: Cross multiply
    15,459.53x = 23,158.38 × 7,128.14
  4. Step 4: Simplify right side
    15,459.53x = 165,076,259.44
  5. Step 5: Solve for x
    x = 165,076,259.44/15,459.53
  6. Step 6: Final answer
    x = 10,677.96

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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.