Home / 12,638.29-17,440.98-6,973.24

Finding the Fourth Proportional to 12,638.29, 17,440.98 and 6,973.24

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Solution

The fourth proportional to 12,638.29, 17,440.98 and 6,973.24 is: 9,623.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638.29 : 17,440.98 = 6,973.24 : x
  2. Step 2: Convert to fraction form
    12,638.29/17,440.98 = 6,973.24/x
  3. Step 3: Cross multiply
    12,638.29x = 17,440.98 × 6,973.24
  4. Step 4: Simplify right side
    12,638.29x = 121,620,139.38
  5. Step 5: Solve for x
    x = 121,620,139.38/12,638.29
  6. Step 6: Final answer
    x = 9,623.15

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Double scale
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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.