Home / 11,316.77-15,616.91-6,280.95

Finding the Fourth Proportional to 11,316.77, 15,616.91 and 6,280.95

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Solution

The fourth proportional to 11,316.77, 15,616.91 and 6,280.95 is: 8,667.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.77 : 15,616.91 = 6,280.95 : x
  2. Step 2: Convert to fraction form
    11,316.77/15,616.91 = 6,280.95/x
  3. Step 3: Cross multiply
    11,316.77x = 15,616.91 × 6,280.95
  4. Step 4: Simplify right side
    11,316.77x = 98,088,999.46
  5. Step 5: Solve for x
    x = 98,088,999.46/11,316.77
  6. Step 6: Final answer
    x = 8,667.58

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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.