Home / 12,687,989.34-17,509,443-6,886,772.40

Finding the Fourth Proportional to 12,687,989.34, 17,509,443 and 6,886,772.40

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Solution

The fourth proportional to 12,687,989.34, 17,509,443 and 6,886,772.40 is: 9,503,755.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,989.34 : 17,509,443 = 6,886,772.40 : x
  2. Step 2: Convert to fraction form
    12,687,989.34/17,509,443 = 6,886,772.40/x
  3. Step 3: Cross multiply
    12,687,989.34x = 17,509,443 × 6,886,772.40
  4. Step 4: Simplify right side
    12,687,989.34x = 120,583,548,791,773.20
  5. Step 5: Solve for x
    x = 120,583,548,791,773.20/12,687,989.34
  6. Step 6: Final answer
    x = 9,503,755.53

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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.