Home / 13,549.92-18,699.12-7,581.48

Finding the Fourth Proportional to 13,549.92, 18,699.12 and 7,581.48

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Solution

The fourth proportional to 13,549.92, 18,699.12 and 7,581.48 is: 10,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.92 : 18,699.12 = 7,581.48 : x
  2. Step 2: Convert to fraction form
    13,549.92/18,699.12 = 7,581.48/x
  3. Step 3: Cross multiply
    13,549.92x = 18,699.12 × 7,581.48
  4. Step 4: Simplify right side
    13,549.92x = 141,767,004.30
  5. Step 5: Solve for x
    x = 141,767,004.30/13,549.92
  6. Step 6: Final answer
    x = 10,462.57

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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.