Home / 15,672.40-21,615.83-10,892.28

Finding the Fourth Proportional to 15,672.40, 21,615.83 and 10,892.28

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Solution

The fourth proportional to 15,672.40, 21,615.83 and 10,892.28 is: 15,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672.40 : 21,615.83 = 10,892.28 : x
  2. Step 2: Convert to fraction form
    15,672.40/21,615.83 = 10,892.28/x
  3. Step 3: Cross multiply
    15,672.40x = 21,615.83 × 10,892.28
  4. Step 4: Simplify right side
    15,672.40x = 235,445,672.79
  5. Step 5: Solve for x
    x = 235,445,672.79/15,672.40
  6. Step 6: Final answer
    x = 15,022.95

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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.