Home / 11,585.57-15,988.15-6,280.42

Finding the Fourth Proportional to 11,585.57, 15,988.15 and 6,280.42

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Solution

The fourth proportional to 11,585.57, 15,988.15 and 6,280.42 is: 8,667.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,585.57 : 15,988.15 = 6,280.42 : x
  2. Step 2: Convert to fraction form
    11,585.57/15,988.15 = 6,280.42/x
  3. Step 3: Cross multiply
    11,585.57x = 15,988.15 × 6,280.42
  4. Step 4: Simplify right side
    11,585.57x = 100,412,297.02
  5. Step 5: Solve for x
    x = 100,412,297.02/11,585.57
  6. Step 6: Final answer
    x = 8,667.01

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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.