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Finding the Fourth Proportional to 12,953.32, 17,866.32 and 12,758.92

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Solution

The fourth proportional to 12,953.32, 17,866.32 and 12,758.92 is: 17,598.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.32 : 17,866.32 = 12,758.92 : x
  2. Step 2: Convert to fraction form
    12,953.32/17,866.32 = 12,758.92/x
  3. Step 3: Cross multiply
    12,953.32x = 17,866.32 × 12,758.92
  4. Step 4: Simplify right side
    12,953.32x = 227,954,947.57
  5. Step 5: Solve for x
    x = 227,954,947.57/12,953.32
  6. Step 6: Final answer
    x = 17,598.19

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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.