Home / 15,544.18-21,455-9,580.76

Finding the Fourth Proportional to 15,544.18, 21,455 and 9,580.76

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Solution

The fourth proportional to 15,544.18, 21,455 and 9,580.76 is: 13,223.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.18 : 21,455 = 9,580.76 : x
  2. Step 2: Convert to fraction form
    15,544.18/21,455 = 9,580.76/x
  3. Step 3: Cross multiply
    15,544.18x = 21,455 × 9,580.76
  4. Step 4: Simplify right side
    15,544.18x = 205,555,205.80
  5. Step 5: Solve for x
    x = 205,555,205.80/15,544.18
  6. Step 6: Final answer
    x = 13,223.93

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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.