Home / 13,238.74-18,269.96-7,932.53

Finding the Fourth Proportional to 13,238.74, 18,269.96 and 7,932.53

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Solution

The fourth proportional to 13,238.74, 18,269.96 and 7,932.53 is: 10,947.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.74 : 18,269.96 = 7,932.53 : x
  2. Step 2: Convert to fraction form
    13,238.74/18,269.96 = 7,932.53/x
  3. Step 3: Cross multiply
    13,238.74x = 18,269.96 × 7,932.53
  4. Step 4: Simplify right side
    13,238.74x = 144,927,011.81
  5. Step 5: Solve for x
    x = 144,927,011.81/13,238.74
  6. Step 6: Final answer
    x = 10,947.19

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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.