Home / 15,565.02-21,479.07-8,849.71

Finding the Fourth Proportional to 15,565.02, 21,479.07 and 8,849.71

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Solution

The fourth proportional to 15,565.02, 21,479.07 and 8,849.71 is: 12,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,565.02 : 21,479.07 = 8,849.71 : x
  2. Step 2: Convert to fraction form
    15,565.02/21,479.07 = 8,849.71/x
  3. Step 3: Cross multiply
    15,565.02x = 21,479.07 × 8,849.71
  4. Step 4: Simplify right side
    15,565.02x = 190,083,540.57
  5. Step 5: Solve for x
    x = 190,083,540.57/15,565.02
  6. Step 6: Final answer
    x = 12,212.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.