Home / 13,549.59-18,692.51-10,400.31

Finding the Fourth Proportional to 13,549.59, 18,692.51 and 10,400.31

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Solution

The fourth proportional to 13,549.59, 18,692.51 and 10,400.31 is: 14,347.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.59 : 18,692.51 = 10,400.31 : x
  2. Step 2: Convert to fraction form
    13,549.59/18,692.51 = 10,400.31/x
  3. Step 3: Cross multiply
    13,549.59x = 18,692.51 × 10,400.31
  4. Step 4: Simplify right side
    13,549.59x = 194,407,846.68
  5. Step 5: Solve for x
    x = 194,407,846.68/13,549.59
  6. Step 6: Final answer
    x = 14,347.88

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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.