Home / 12,687,478.50-17,508,739.56-6,886,262.36

Finding the Fourth Proportional to 12,687,478.50, 17,508,739.56 and 6,886,262.36

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Solution

The fourth proportional to 12,687,478.50, 17,508,739.56 and 6,886,262.36 is: 9,503,052.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,478.50 : 17,508,739.56 = 6,886,262.36 : x
  2. Step 2: Convert to fraction form
    12,687,478.50/17,508,739.56 = 6,886,262.36/x
  3. Step 3: Cross multiply
    12,687,478.50x = 17,508,739.56 × 6,886,262.36
  4. Step 4: Simplify right side
    12,687,478.50x = 120,569,774,203,070.95
  5. Step 5: Solve for x
    x = 120,569,774,203,070.95/12,687,478.50
  6. Step 6: Final answer
    x = 9,503,052.49

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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.