Home / 16,139.79-22,270.95-9,427.05

Finding the Fourth Proportional to 16,139.79, 22,270.95 and 9,427.05

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Solution

The fourth proportional to 16,139.79, 22,270.95 and 9,427.05 is: 13,008.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,139.79 : 22,270.95 = 9,427.05 : x
  2. Step 2: Convert to fraction form
    16,139.79/22,270.95 = 9,427.05/x
  3. Step 3: Cross multiply
    16,139.79x = 22,270.95 × 9,427.05
  4. Step 4: Simplify right side
    16,139.79x = 209,949,359.20
  5. Step 5: Solve for x
    x = 209,949,359.20/16,139.79
  6. Step 6: Final answer
    x = 13,008.18

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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.