Home / 12,687,581.91-17,508,818.88-6,886,363.63

Finding the Fourth Proportional to 12,687,581.91, 17,508,818.88 and 6,886,363.63

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Solution

The fourth proportional to 12,687,581.91, 17,508,818.88 and 6,886,363.63 is: 9,503,157.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,581.91 : 17,508,818.88 = 6,886,363.63 : x
  2. Step 2: Convert to fraction form
    12,687,581.91/17,508,818.88 = 6,886,363.63/x
  3. Step 3: Cross multiply
    12,687,581.91x = 17,508,818.88 × 6,886,363.63
  4. Step 4: Simplify right side
    12,687,581.91x = 120,572,093,539,489.33
  5. Step 5: Solve for x
    x = 120,572,093,539,489.33/12,687,581.91
  6. Step 6: Final answer
    x = 9,503,157.84

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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.