Home / 13,325.56-18,387.66-7,356.76

Finding the Fourth Proportional to 13,325.56, 18,387.66 and 7,356.76

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Solution

The fourth proportional to 13,325.56, 18,387.66 and 7,356.76 is: 10,151.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.56 : 18,387.66 = 7,356.76 : x
  2. Step 2: Convert to fraction form
    13,325.56/18,387.66 = 7,356.76/x
  3. Step 3: Cross multiply
    13,325.56x = 18,387.66 × 7,356.76
  4. Step 4: Simplify right side
    13,325.56x = 135,273,601.58
  5. Step 5: Solve for x
    x = 135,273,601.58/13,325.56
  6. Step 6: Final answer
    x = 10,151.44

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Half scale
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Double scale
Find fourth proportional to 13,326.56, 18,389.04 and 7,357.76
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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.