Home / 17,638.04-24,340.79-9,681

Finding the Fourth Proportional to 17,638.04, 24,340.79 and 9,681

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Solution

The fourth proportional to 17,638.04, 24,340.79 and 9,681 is: 13,359.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,638.04 : 24,340.79 = 9,681 : x
  2. Step 2: Convert to fraction form
    17,638.04/24,340.79 = 9,681/x
  3. Step 3: Cross multiply
    17,638.04x = 24,340.79 × 9,681
  4. Step 4: Simplify right side
    17,638.04x = 235,643,139.59
  5. Step 5: Solve for x
    x = 235,643,139.59/17,638.04
  6. Step 6: Final answer
    x = 13,359.94

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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.