Home / 8,543.11-11,787.48-5,185.84

Finding the Fourth Proportional to 8,543.11, 11,787.48 and 5,185.84

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Solution

The fourth proportional to 8,543.11, 11,787.48 and 5,185.84 is: 7,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.11 : 11,787.48 = 5,185.84 : x
  2. Step 2: Convert to fraction form
    8,543.11/11,787.48 = 5,185.84/x
  3. Step 3: Cross multiply
    8,543.11x = 11,787.48 × 5,185.84
  4. Step 4: Simplify right side
    8,543.11x = 61,127,985.28
  5. Step 5: Solve for x
    x = 61,127,985.28/8,543.11
  6. Step 6: Final answer
    x = 7,155.24

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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.