Home / 8,430.95-12,645.97-2,587.56

Finding the Fourth Proportional to 8,430.95, 12,645.97 and 2,587.56

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Solution

The fourth proportional to 8,430.95, 12,645.97 and 2,587.56 is: 3,881.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.95 : 12,645.97 = 2,587.56 : x
  2. Step 2: Convert to fraction form
    8,430.95/12,645.97 = 2,587.56/x
  3. Step 3: Cross multiply
    8,430.95x = 12,645.97 × 2,587.56
  4. Step 4: Simplify right side
    8,430.95x = 32,722,129.97
  5. Step 5: Solve for x
    x = 32,722,129.97/8,430.95
  6. Step 6: Final answer
    x = 3,881.19

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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.