Home / 13,236.64-18,264.22-8,758.76

Finding the Fourth Proportional to 13,236.64, 18,264.22 and 8,758.76

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Solution

The fourth proportional to 13,236.64, 18,264.22 and 8,758.76 is: 12,085.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.64 : 18,264.22 = 8,758.76 : x
  2. Step 2: Convert to fraction form
    13,236.64/18,264.22 = 8,758.76/x
  3. Step 3: Cross multiply
    13,236.64x = 18,264.22 × 8,758.76
  4. Step 4: Simplify right side
    13,236.64x = 159,971,806.35
  5. Step 5: Solve for x
    x = 159,971,806.35/13,236.64
  6. Step 6: Final answer
    x = 12,085.53

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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.