Home / 15,544.48-21,451.38-9,171.16

Finding the Fourth Proportional to 15,544.48, 21,451.38 and 9,171.16

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Solution

The fourth proportional to 15,544.48, 21,451.38 and 9,171.16 is: 12,656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.48 : 21,451.38 = 9,171.16 : x
  2. Step 2: Convert to fraction form
    15,544.48/21,451.38 = 9,171.16/x
  3. Step 3: Cross multiply
    15,544.48x = 21,451.38 × 9,171.16
  4. Step 4: Simplify right side
    15,544.48x = 196,734,038.20
  5. Step 5: Solve for x
    x = 196,734,038.20/15,544.48
  6. Step 6: Final answer
    x = 12,656.20

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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.