Home / 12,687,615.45-17,508,440.24-6,886,272.64

Finding the Fourth Proportional to 12,687,615.45, 17,508,440.24 and 6,886,272.64

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Solution

The fourth proportional to 12,687,615.45, 17,508,440.24 and 6,886,272.64 is: 9,502,801.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,615.45 : 17,508,440.24 = 6,886,272.64 : x
  2. Step 2: Convert to fraction form
    12,687,615.45/17,508,440.24 = 6,886,272.64/x
  3. Step 3: Cross multiply
    12,687,615.45x = 17,508,440.24 × 6,886,272.64
  4. Step 4: Simplify right side
    12,687,615.45x = 120,567,892,993,787.02
  5. Step 5: Solve for x
    x = 120,567,892,993,787.02/12,687,615.45
  6. Step 6: Final answer
    x = 9,502,801.65

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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.