Home / 15,240.76-21,018.56-9,576.04

Finding the Fourth Proportional to 15,240.76, 21,018.56 and 9,576.04

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Solution

The fourth proportional to 15,240.76, 21,018.56 and 9,576.04 is: 13,206.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.76 : 21,018.56 = 9,576.04 : x
  2. Step 2: Convert to fraction form
    15,240.76/21,018.56 = 9,576.04/x
  3. Step 3: Cross multiply
    15,240.76x = 21,018.56 × 9,576.04
  4. Step 4: Simplify right side
    15,240.76x = 201,274,571.30
  5. Step 5: Solve for x
    x = 201,274,571.30/15,240.76
  6. Step 6: Final answer
    x = 13,206.33

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Half scale
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Double scale
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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.