Home / 15,138.68-22,708.08-4,045.40

Finding the Fourth Proportional to 15,138.68, 22,708.08 and 4,045.40

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Solution

The fourth proportional to 15,138.68, 22,708.08 and 4,045.40 is: 6,068.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.68 : 22,708.08 = 4,045.40 : x
  2. Step 2: Convert to fraction form
    15,138.68/22,708.08 = 4,045.40/x
  3. Step 3: Cross multiply
    15,138.68x = 22,708.08 × 4,045.40
  4. Step 4: Simplify right side
    15,138.68x = 91,863,266.83
  5. Step 5: Solve for x
    x = 91,863,266.83/15,138.68
  6. Step 6: Final answer
    x = 6,068.12

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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.