Home / 15,447.15-21,301.02-13,216.41

Finding the Fourth Proportional to 15,447.15, 21,301.02 and 13,216.41

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Solution

The fourth proportional to 15,447.15, 21,301.02 and 13,216.41 is: 18,224.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.15 : 21,301.02 = 13,216.41 : x
  2. Step 2: Convert to fraction form
    15,447.15/21,301.02 = 13,216.41/x
  3. Step 3: Cross multiply
    15,447.15x = 21,301.02 × 13,216.41
  4. Step 4: Simplify right side
    15,447.15x = 281,523,013.74
  5. Step 5: Solve for x
    x = 281,523,013.74/15,447.15
  6. Step 6: Final answer
    x = 18,224.92

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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.