Home / 12,022.47-16,587.30-6,985.73

Finding the Fourth Proportional to 12,022.47, 16,587.30 and 6,985.73

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Solution

The fourth proportional to 12,022.47, 16,587.30 and 6,985.73 is: 9,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,022.47 : 16,587.30 = 6,985.73 : x
  2. Step 2: Convert to fraction form
    12,022.47/16,587.30 = 6,985.73/x
  3. Step 3: Cross multiply
    12,022.47x = 16,587.30 × 6,985.73
  4. Step 4: Simplify right side
    12,022.47x = 115,874,440.70
  5. Step 5: Solve for x
    x = 115,874,440.70/12,022.47
  6. Step 6: Final answer
    x = 9,638.16

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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.