Home / 11,315.97-15,616.08-6,280.02

Finding the Fourth Proportional to 11,315.97, 15,616.08 and 6,280.02

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Solution

The fourth proportional to 11,315.97, 15,616.08 and 6,280.02 is: 8,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.97 : 15,616.08 = 6,280.02 : x
  2. Step 2: Convert to fraction form
    11,315.97/15,616.08 = 6,280.02/x
  3. Step 3: Cross multiply
    11,315.97x = 15,616.08 × 6,280.02
  4. Step 4: Simplify right side
    11,315.97x = 98,069,294.72
  5. Step 5: Solve for x
    x = 98,069,294.72/11,315.97
  6. Step 6: Final answer
    x = 8,666.45

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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.