Home / 12,865.32-17,748.51-7,557.75

Finding the Fourth Proportional to 12,865.32, 17,748.51 and 7,557.75

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Solution

The fourth proportional to 12,865.32, 17,748.51 and 7,557.75 is: 10,426.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865.32 : 17,748.51 = 7,557.75 : x
  2. Step 2: Convert to fraction form
    12,865.32/17,748.51 = 7,557.75/x
  3. Step 3: Cross multiply
    12,865.32x = 17,748.51 × 7,557.75
  4. Step 4: Simplify right side
    12,865.32x = 134,138,712.71
  5. Step 5: Solve for x
    x = 134,138,712.71/12,865.32
  6. Step 6: Final answer
    x = 10,426.38

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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.