Home / 13,717.92-18,930.81-7,750.14

Finding the Fourth Proportional to 13,717.92, 18,930.81 and 7,750.14

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Solution

The fourth proportional to 13,717.92, 18,930.81 and 7,750.14 is: 10,695.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.92 : 18,930.81 = 7,750.14 : x
  2. Step 2: Convert to fraction form
    13,717.92/18,930.81 = 7,750.14/x
  3. Step 3: Cross multiply
    13,717.92x = 18,930.81 × 7,750.14
  4. Step 4: Simplify right side
    13,717.92x = 146,716,427.81
  5. Step 5: Solve for x
    x = 146,716,427.81/13,717.92
  6. Step 6: Final answer
    x = 10,695.24

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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.