Home / 9,117.76-13,677.16-2,877.96

Finding the Fourth Proportional to 9,117.76, 13,677.16 and 2,877.96

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Solution

The fourth proportional to 9,117.76, 13,677.16 and 2,877.96 is: 4,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.76 : 13,677.16 = 2,877.96 : x
  2. Step 2: Convert to fraction form
    9,117.76/13,677.16 = 2,877.96/x
  3. Step 3: Cross multiply
    9,117.76x = 13,677.16 × 2,877.96
  4. Step 4: Simplify right side
    9,117.76x = 39,362,319.39
  5. Step 5: Solve for x
    x = 39,362,319.39/9,117.76
  6. Step 6: Final answer
    x = 4,317.10

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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.