Home / 15,125.07-22,585.65-12,357.21

Finding the Fourth Proportional to 15,125.07, 22,585.65 and 12,357.21

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Solution

The fourth proportional to 15,125.07, 22,585.65 and 12,357.21 is: 18,452.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,125.07 : 22,585.65 = 12,357.21 : x
  2. Step 2: Convert to fraction form
    15,125.07/22,585.65 = 12,357.21/x
  3. Step 3: Cross multiply
    15,125.07x = 22,585.65 × 12,357.21
  4. Step 4: Simplify right side
    15,125.07x = 279,095,620.04
  5. Step 5: Solve for x
    x = 279,095,620.04/15,125.07
  6. Step 6: Final answer
    x = 18,452.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.