Home / 17,638.90-24,341.66-9,681.15

Finding the Fourth Proportional to 17,638.90, 24,341.66 and 9,681.15

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Solution

The fourth proportional to 17,638.90, 24,341.66 and 9,681.15 is: 13,359.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,638.90 : 24,341.66 = 9,681.15 : x
  2. Step 2: Convert to fraction form
    17,638.90/24,341.66 = 9,681.15/x
  3. Step 3: Cross multiply
    17,638.90x = 24,341.66 × 9,681.15
  4. Step 4: Simplify right side
    17,638.90x = 235,655,091.59
  5. Step 5: Solve for x
    x = 235,655,091.59/17,638.90
  6. Step 6: Final answer
    x = 13,359.97

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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.