Home / 12,587.22-17,377.74-8,713.80

Finding the Fourth Proportional to 12,587.22, 17,377.74 and 8,713.80

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Solution

The fourth proportional to 12,587.22, 17,377.74 and 8,713.80 is: 12,030.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.22 : 17,377.74 = 8,713.80 : x
  2. Step 2: Convert to fraction form
    12,587.22/17,377.74 = 8,713.80/x
  3. Step 3: Cross multiply
    12,587.22x = 17,377.74 × 8,713.80
  4. Step 4: Simplify right side
    12,587.22x = 151,426,150.81
  5. Step 5: Solve for x
    x = 151,426,150.81/12,587.22
  6. Step 6: Final answer
    x = 12,030.15

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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.