Home / 12,309.55-18,473.97-8,587.57

Finding the Fourth Proportional to 12,309.55, 18,473.97 and 8,587.57

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Solution

The fourth proportional to 12,309.55, 18,473.97 and 8,587.57 is: 12,888.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309.55 : 18,473.97 = 8,587.57 : x
  2. Step 2: Convert to fraction form
    12,309.55/18,473.97 = 8,587.57/x
  3. Step 3: Cross multiply
    12,309.55x = 18,473.97 × 8,587.57
  4. Step 4: Simplify right side
    12,309.55x = 158,646,510.55
  5. Step 5: Solve for x
    x = 158,646,510.55/12,309.55
  6. Step 6: Final answer
    x = 12,888.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.