Home / 13,346.08-18,418.11-8,862.10

Finding the Fourth Proportional to 13,346.08, 18,418.11 and 8,862.10

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Solution

The fourth proportional to 13,346.08, 18,418.11 and 8,862.10 is: 12,230.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.08 : 18,418.11 = 8,862.10 : x
  2. Step 2: Convert to fraction form
    13,346.08/18,418.11 = 8,862.10/x
  3. Step 3: Cross multiply
    13,346.08x = 18,418.11 × 8,862.10
  4. Step 4: Simplify right side
    13,346.08x = 163,223,132.63
  5. Step 5: Solve for x
    x = 163,223,132.63/13,346.08
  6. Step 6: Final answer
    x = 12,230.04

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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.