Home / 11,316.48-15,616.68-6,280.71

Finding the Fourth Proportional to 11,316.48, 15,616.68 and 6,280.71

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Solution

The fourth proportional to 11,316.48, 15,616.68 and 6,280.71 is: 8,667.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.48 : 15,616.68 = 6,280.71 : x
  2. Step 2: Convert to fraction form
    11,316.48/15,616.68 = 6,280.71/x
  3. Step 3: Cross multiply
    11,316.48x = 15,616.68 × 6,280.71
  4. Step 4: Simplify right side
    11,316.48x = 98,083,838.24
  5. Step 5: Solve for x
    x = 98,083,838.24/11,316.48
  6. Step 6: Final answer
    x = 8,667.35

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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.