Home / 13,426.16-20,037.12-12,534.96

Finding the Fourth Proportional to 13,426.16, 20,037.12 and 12,534.96

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Solution

The fourth proportional to 13,426.16, 20,037.12 and 12,534.96 is: 18,707.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.16 : 20,037.12 = 12,534.96 : x
  2. Step 2: Convert to fraction form
    13,426.16/20,037.12 = 12,534.96/x
  3. Step 3: Cross multiply
    13,426.16x = 20,037.12 × 12,534.96
  4. Step 4: Simplify right side
    13,426.16x = 251,164,497.72
  5. Step 5: Solve for x
    x = 251,164,497.72/13,426.16
  6. Step 6: Final answer
    x = 18,707.10

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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.