Home / 15,182.31-20,954.15-11,214.93

Finding the Fourth Proportional to 15,182.31, 20,954.15 and 11,214.93

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Solution

The fourth proportional to 15,182.31, 20,954.15 and 11,214.93 is: 15,478.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,182.31 : 20,954.15 = 11,214.93 : x
  2. Step 2: Convert to fraction form
    15,182.31/20,954.15 = 11,214.93/x
  3. Step 3: Cross multiply
    15,182.31x = 20,954.15 × 11,214.93
  4. Step 4: Simplify right side
    15,182.31x = 234,999,325.46
  5. Step 5: Solve for x
    x = 234,999,325.46/15,182.31
  6. Step 6: Final answer
    x = 15,478.50

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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.