Home / 12,498.81-18,734.45-5,915.13

Finding the Fourth Proportional to 12,498.81, 18,734.45 and 5,915.13

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Solution

The fourth proportional to 12,498.81, 18,734.45 and 5,915.13 is: 8,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,498.81 : 18,734.45 = 5,915.13 : x
  2. Step 2: Convert to fraction form
    12,498.81/18,734.45 = 5,915.13/x
  3. Step 3: Cross multiply
    12,498.81x = 18,734.45 × 5,915.13
  4. Step 4: Simplify right side
    12,498.81x = 110,816,677.65
  5. Step 5: Solve for x
    x = 110,816,677.65/12,498.81
  6. Step 6: Final answer
    x = 8,866.18

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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.