Home / 11,586.09-15,988.72-6,280.87

Finding the Fourth Proportional to 11,586.09, 15,988.72 and 6,280.87

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Solution

The fourth proportional to 11,586.09, 15,988.72 and 6,280.87 is: 8,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,586.09 : 15,988.72 = 6,280.87 : x
  2. Step 2: Convert to fraction form
    11,586.09/15,988.72 = 6,280.87/x
  3. Step 3: Cross multiply
    11,586.09x = 15,988.72 × 6,280.87
  4. Step 4: Simplify right side
    11,586.09x = 100,422,995.23
  5. Step 5: Solve for x
    x = 100,422,995.23/11,586.09
  6. Step 6: Final answer
    x = 8,667.55

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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.