Home / 15,492.28-21,381.20-9,204.68

Finding the Fourth Proportional to 15,492.28, 21,381.20 and 9,204.68

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Solution

The fourth proportional to 15,492.28, 21,381.20 and 9,204.68 is: 12,703.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,492.28 : 21,381.20 = 9,204.68 : x
  2. Step 2: Convert to fraction form
    15,492.28/21,381.20 = 9,204.68/x
  3. Step 3: Cross multiply
    15,492.28x = 21,381.20 × 9,204.68
  4. Step 4: Simplify right side
    15,492.28x = 196,807,104.02
  5. Step 5: Solve for x
    x = 196,807,104.02/15,492.28
  6. Step 6: Final answer
    x = 12,703.56

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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.