Home / 11,586.16-15,988.68-6,280.88

Finding the Fourth Proportional to 11,586.16, 15,988.68 and 6,280.88

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Solution

The fourth proportional to 11,586.16, 15,988.68 and 6,280.88 is: 8,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,586.16 : 15,988.68 = 6,280.88 : x
  2. Step 2: Convert to fraction form
    11,586.16/15,988.68 = 6,280.88/x
  3. Step 3: Cross multiply
    11,586.16x = 15,988.68 × 6,280.88
  4. Step 4: Simplify right side
    11,586.16x = 100,422,980.44
  5. Step 5: Solve for x
    x = 100,422,980.44/11,586.16
  6. Step 6: Final answer
    x = 8,667.49

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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.