Home / 15,623.28-21,560.18-8,549.75

Finding the Fourth Proportional to 15,623.28, 21,560.18 and 8,549.75

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Solution

The fourth proportional to 15,623.28, 21,560.18 and 8,549.75 is: 11,798.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,623.28 : 21,560.18 = 8,549.75 : x
  2. Step 2: Convert to fraction form
    15,623.28/21,560.18 = 8,549.75/x
  3. Step 3: Cross multiply
    15,623.28x = 21,560.18 × 8,549.75
  4. Step 4: Simplify right side
    15,623.28x = 184,334,160.11
  5. Step 5: Solve for x
    x = 184,334,160.11/15,623.28
  6. Step 6: Final answer
    x = 11,798.69

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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.