Home / 12,887.88-19,306.19-8,492.01

Finding the Fourth Proportional to 12,887.88, 19,306.19 and 8,492.01

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Solution

The fourth proportional to 12,887.88, 19,306.19 and 8,492.01 is: 12,721.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.88 : 19,306.19 = 8,492.01 : x
  2. Step 2: Convert to fraction form
    12,887.88/19,306.19 = 8,492.01/x
  3. Step 3: Cross multiply
    12,887.88x = 19,306.19 × 8,492.01
  4. Step 4: Simplify right side
    12,887.88x = 163,948,316.08
  5. Step 5: Solve for x
    x = 163,948,316.08/12,887.88
  6. Step 6: Final answer
    x = 12,721.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.