Home / 15,616.02-21,549.78-8,542.20

Finding the Fourth Proportional to 15,616.02, 21,549.78 and 8,542.20

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Solution

The fourth proportional to 15,616.02, 21,549.78 and 8,542.20 is: 11,788.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,616.02 : 21,549.78 = 8,542.20 : x
  2. Step 2: Convert to fraction form
    15,616.02/21,549.78 = 8,542.20/x
  3. Step 3: Cross multiply
    15,616.02x = 21,549.78 × 8,542.20
  4. Step 4: Simplify right side
    15,616.02x = 184,082,530.72
  5. Step 5: Solve for x
    x = 184,082,530.72/15,616.02
  6. Step 6: Final answer
    x = 11,788.06

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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.