Home / 12,459.76-18,689.40-5,889.04

Finding the Fourth Proportional to 12,459.76, 18,689.40 and 5,889.04

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Solution

The fourth proportional to 12,459.76, 18,689.40 and 5,889.04 is: 8,833.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.76 : 18,689.40 = 5,889.04 : x
  2. Step 2: Convert to fraction form
    12,459.76/18,689.40 = 5,889.04/x
  3. Step 3: Cross multiply
    12,459.76x = 18,689.40 × 5,889.04
  4. Step 4: Simplify right side
    12,459.76x = 110,062,624.18
  5. Step 5: Solve for x
    x = 110,062,624.18/12,459.76
  6. Step 6: Final answer
    x = 8,833.45

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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.