Home / 13,230.66-18,258.60-7,262.71

Finding the Fourth Proportional to 13,230.66, 18,258.60 and 7,262.71

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Solution

The fourth proportional to 13,230.66, 18,258.60 and 7,262.71 is: 10,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.66 : 18,258.60 = 7,262.71 : x
  2. Step 2: Convert to fraction form
    13,230.66/18,258.60 = 7,262.71/x
  3. Step 3: Cross multiply
    13,230.66x = 18,258.60 × 7,262.71
  4. Step 4: Simplify right side
    13,230.66x = 132,606,916.81
  5. Step 5: Solve for x
    x = 132,606,916.81/13,230.66
  6. Step 6: Final answer
    x = 10,022.70

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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.