Home / 13,149.56-18,146.12-7,484.16

Finding the Fourth Proportional to 13,149.56, 18,146.12 and 7,484.16

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Solution

The fourth proportional to 13,149.56, 18,146.12 and 7,484.16 is: 10,327.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.56 : 18,146.12 = 7,484.16 : x
  2. Step 2: Convert to fraction form
    13,149.56/18,146.12 = 7,484.16/x
  3. Step 3: Cross multiply
    13,149.56x = 18,146.12 × 7,484.16
  4. Step 4: Simplify right side
    13,149.56x = 135,808,465.46
  5. Step 5: Solve for x
    x = 135,808,465.46/13,149.56
  6. Step 6: Final answer
    x = 10,327.99

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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.