Home / 11,316.43-15,616.21-6,280.87

Finding the Fourth Proportional to 11,316.43, 15,616.21 and 6,280.87

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Solution

The fourth proportional to 11,316.43, 15,616.21 and 6,280.87 is: 8,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.43 : 15,616.21 = 6,280.87 : x
  2. Step 2: Convert to fraction form
    11,316.43/15,616.21 = 6,280.87/x
  3. Step 3: Cross multiply
    11,316.43x = 15,616.21 × 6,280.87
  4. Step 4: Simplify right side
    11,316.43x = 98,083,384.90
  5. Step 5: Solve for x
    x = 98,083,384.90/11,316.43
  6. Step 6: Final answer
    x = 8,667.34

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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.