Home / 12,863.05-17,750.16-7,196.81

Finding the Fourth Proportional to 12,863.05, 17,750.16 and 7,196.81

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Solution

The fourth proportional to 12,863.05, 17,750.16 and 7,196.81 is: 9,931.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.05 : 17,750.16 = 7,196.81 : x
  2. Step 2: Convert to fraction form
    12,863.05/17,750.16 = 7,196.81/x
  3. Step 3: Cross multiply
    12,863.05x = 17,750.16 × 7,196.81
  4. Step 4: Simplify right side
    12,863.05x = 127,744,440.24
  5. Step 5: Solve for x
    x = 127,744,440.24/12,863.05
  6. Step 6: Final answer
    x = 9,931.12

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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.