Home / 11,585.97-15,988.66-6,280.81

Finding the Fourth Proportional to 11,585.97, 15,988.66 and 6,280.81

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Solution

The fourth proportional to 11,585.97, 15,988.66 and 6,280.81 is: 8,667.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,585.97 : 15,988.66 = 6,280.81 : x
  2. Step 2: Convert to fraction form
    11,585.97/15,988.66 = 6,280.81/x
  3. Step 3: Cross multiply
    11,585.97x = 15,988.66 × 6,280.81
  4. Step 4: Simplify right side
    11,585.97x = 100,421,679.94
  5. Step 5: Solve for x
    x = 100,421,679.94/11,585.97
  6. Step 6: Final answer
    x = 8,667.52

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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.