Home / 13,492.08-20,132.56-12,091.20

Finding the Fourth Proportional to 13,492.08, 20,132.56 and 12,091.20

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Solution

The fourth proportional to 13,492.08, 20,132.56 and 12,091.20 is: 18,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,492.08 : 20,132.56 = 12,091.20 : x
  2. Step 2: Convert to fraction form
    13,492.08/20,132.56 = 12,091.20/x
  3. Step 3: Cross multiply
    13,492.08x = 20,132.56 × 12,091.20
  4. Step 4: Simplify right side
    13,492.08x = 243,426,809.47
  5. Step 5: Solve for x
    x = 243,426,809.47/13,492.08
  6. Step 6: Final answer
    x = 18,042.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.