Home / 15,740.28-21,719.36-9,026.19

Finding the Fourth Proportional to 15,740.28, 21,719.36 and 9,026.19

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Solution

The fourth proportional to 15,740.28, 21,719.36 and 9,026.19 is: 12,454.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.28 : 21,719.36 = 9,026.19 : x
  2. Step 2: Convert to fraction form
    15,740.28/21,719.36 = 9,026.19/x
  3. Step 3: Cross multiply
    15,740.28x = 21,719.36 × 9,026.19
  4. Step 4: Simplify right side
    15,740.28x = 196,043,024.91
  5. Step 5: Solve for x
    x = 196,043,024.91/15,740.28
  6. Step 6: Final answer
    x = 12,454.86

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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.