Home / 15,443.80-21,299.76-9,471.26

Finding the Fourth Proportional to 15,443.80, 21,299.76 and 9,471.26

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Solution

The fourth proportional to 15,443.80, 21,299.76 and 9,471.26 is: 13,062.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,443.80 : 21,299.76 = 9,471.26 : x
  2. Step 2: Convert to fraction form
    15,443.80/21,299.76 = 9,471.26/x
  3. Step 3: Cross multiply
    15,443.80x = 21,299.76 × 9,471.26
  4. Step 4: Simplify right side
    15,443.80x = 201,735,618.15
  5. Step 5: Solve for x
    x = 201,735,618.15/15,443.80
  6. Step 6: Final answer
    x = 13,062.57

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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.