Home / 13,426.02-18,546.57-12,769.92

Finding the Fourth Proportional to 13,426.02, 18,546.57 and 12,769.92

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Solution

The fourth proportional to 13,426.02, 18,546.57 and 12,769.92 is: 17,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.02 : 18,546.57 = 12,769.92 : x
  2. Step 2: Convert to fraction form
    13,426.02/18,546.57 = 12,769.92/x
  3. Step 3: Cross multiply
    13,426.02x = 18,546.57 × 12,769.92
  4. Step 4: Simplify right side
    13,426.02x = 236,838,215.17
  5. Step 5: Solve for x
    x = 236,838,215.17/13,426.02
  6. Step 6: Final answer
    x = 17,640.24

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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.