Home / 15,459.93-23,187.20-7,139.24

Finding the Fourth Proportional to 15,459.93, 23,187.20 and 7,139.24

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Solution

The fourth proportional to 15,459.93, 23,187.20 and 7,139.24 is: 10,707.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.93 : 23,187.20 = 7,139.24 : x
  2. Step 2: Convert to fraction form
    15,459.93/23,187.20 = 7,139.24/x
  3. Step 3: Cross multiply
    15,459.93x = 23,187.20 × 7,139.24
  4. Step 4: Simplify right side
    15,459.93x = 165,538,985.73
  5. Step 5: Solve for x
    x = 165,538,985.73/15,459.93
  6. Step 6: Final answer
    x = 10,707.62

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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.