Home / 13,327.02-18,369.72-10,129.68

Finding the Fourth Proportional to 13,327.02, 18,369.72 and 10,129.68

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Solution

The fourth proportional to 13,327.02, 18,369.72 and 10,129.68 is: 13,962.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.02 : 18,369.72 = 10,129.68 : x
  2. Step 2: Convert to fraction form
    13,327.02/18,369.72 = 10,129.68/x
  3. Step 3: Cross multiply
    13,327.02x = 18,369.72 × 10,129.68
  4. Step 4: Simplify right side
    13,327.02x = 186,079,385.29
  5. Step 5: Solve for x
    x = 186,079,385.29/13,327.02
  6. Step 6: Final answer
    x = 13,962.57

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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.