Home / 12,587.70-18,873.33-7,041.66

Finding the Fourth Proportional to 12,587.70, 18,873.33 and 7,041.66

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Solution

The fourth proportional to 12,587.70, 18,873.33 and 7,041.66 is: 10,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.70 : 18,873.33 = 7,041.66 : x
  2. Step 2: Convert to fraction form
    12,587.70/18,873.33 = 7,041.66/x
  3. Step 3: Cross multiply
    12,587.70x = 18,873.33 × 7,041.66
  4. Step 4: Simplify right side
    12,587.70x = 132,899,572.93
  5. Step 5: Solve for x
    x = 132,899,572.93/12,587.70
  6. Step 6: Final answer
    x = 10,557.89

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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.