Home / 12,638.19-17,440.82-6,973.14

Finding the Fourth Proportional to 12,638.19, 17,440.82 and 6,973.14

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Solution

The fourth proportional to 12,638.19, 17,440.82 and 6,973.14 is: 9,623.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638.19 : 17,440.82 = 6,973.14 : x
  2. Step 2: Convert to fraction form
    12,638.19/17,440.82 = 6,973.14/x
  3. Step 3: Cross multiply
    12,638.19x = 17,440.82 × 6,973.14
  4. Step 4: Simplify right side
    12,638.19x = 121,617,279.57
  5. Step 5: Solve for x
    x = 121,617,279.57/12,638.19
  6. Step 6: Final answer
    x = 9,623.00

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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.