Home / 15,658.36-21,591.66-11,888.44

Finding the Fourth Proportional to 15,658.36, 21,591.66 and 11,888.44

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Solution

The fourth proportional to 15,658.36, 21,591.66 and 11,888.44 is: 16,393.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,658.36 : 21,591.66 = 11,888.44 : x
  2. Step 2: Convert to fraction form
    15,658.36/21,591.66 = 11,888.44/x
  3. Step 3: Cross multiply
    15,658.36x = 21,591.66 × 11,888.44
  4. Step 4: Simplify right side
    15,658.36x = 256,691,154.41
  5. Step 5: Solve for x
    x = 256,691,154.41/15,658.36
  6. Step 6: Final answer
    x = 16,393.23

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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.