Home / 11,787.56-17,681.34-5,543.69

Finding the Fourth Proportional to 11,787.56, 17,681.34 and 5,543.69

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Solution

The fourth proportional to 11,787.56, 17,681.34 and 5,543.69 is: 8,315.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.56 : 17,681.34 = 5,543.69 : x
  2. Step 2: Convert to fraction form
    11,787.56/17,681.34 = 5,543.69/x
  3. Step 3: Cross multiply
    11,787.56x = 17,681.34 × 5,543.69
  4. Step 4: Simplify right side
    11,787.56x = 98,019,867.74
  5. Step 5: Solve for x
    x = 98,019,867.74/11,787.56
  6. Step 6: Final answer
    x = 8,315.54

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1.5x scale

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.