Home / 12,648.26-17,455.02-7,342.76

Finding the Fourth Proportional to 12,648.26, 17,455.02 and 7,342.76

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Solution

The fourth proportional to 12,648.26, 17,455.02 and 7,342.76 is: 10,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.26 : 17,455.02 = 7,342.76 : x
  2. Step 2: Convert to fraction form
    12,648.26/17,455.02 = 7,342.76/x
  3. Step 3: Cross multiply
    12,648.26x = 17,455.02 × 7,342.76
  4. Step 4: Simplify right side
    12,648.26x = 128,168,022.66
  5. Step 5: Solve for x
    x = 128,168,022.66/12,648.26
  6. Step 6: Final answer
    x = 10,133.25

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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.