Home / 11,585.66-15,988.16-6,280.46

Finding the Fourth Proportional to 11,585.66, 15,988.16 and 6,280.46

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Solution

The fourth proportional to 11,585.66, 15,988.16 and 6,280.46 is: 8,667.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,585.66 : 15,988.16 = 6,280.46 : x
  2. Step 2: Convert to fraction form
    11,585.66/15,988.16 = 6,280.46/x
  3. Step 3: Cross multiply
    11,585.66x = 15,988.16 × 6,280.46
  4. Step 4: Simplify right side
    11,585.66x = 100,412,999.35
  5. Step 5: Solve for x
    x = 100,412,999.35/11,585.66
  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.