Home / 16,291.24-22,478.26-9,921.18

Finding the Fourth Proportional to 16,291.24, 22,478.26 and 9,921.18

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Solution

The fourth proportional to 16,291.24, 22,478.26 and 9,921.18 is: 13,689.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,291.24 : 22,478.26 = 9,921.18 : x
  2. Step 2: Convert to fraction form
    16,291.24/22,478.26 = 9,921.18/x
  3. Step 3: Cross multiply
    16,291.24x = 22,478.26 × 9,921.18
  4. Step 4: Simplify right side
    16,291.24x = 223,010,863.55
  5. Step 5: Solve for x
    x = 223,010,863.55/16,291.24
  6. Step 6: Final answer
    x = 13,689.00

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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.