Home / 13,277.20-18,315.84-8,244.40

Finding the Fourth Proportional to 13,277.20, 18,315.84 and 8,244.40

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Solution

The fourth proportional to 13,277.20, 18,315.84 and 8,244.40 is: 11,373.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.20 : 18,315.84 = 8,244.40 : x
  2. Step 2: Convert to fraction form
    13,277.20/18,315.84 = 8,244.40/x
  3. Step 3: Cross multiply
    13,277.20x = 18,315.84 × 8,244.40
  4. Step 4: Simplify right side
    13,277.20x = 151,003,111.30
  5. Step 5: Solve for x
    x = 151,003,111.30/13,277.20
  6. Step 6: Final answer
    x = 11,373.11

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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.