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Finding the Fourth Proportional to 12,750.71, 17,595.71 and 7,085.13

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Solution

The fourth proportional to 12,750.71, 17,595.71 and 7,085.13 is: 9,777.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.71 : 17,595.71 = 7,085.13 : x
  2. Step 2: Convert to fraction form
    12,750.71/17,595.71 = 7,085.13/x
  3. Step 3: Cross multiply
    12,750.71x = 17,595.71 × 7,085.13
  4. Step 4: Simplify right side
    12,750.71x = 124,667,857.37
  5. Step 5: Solve for x
    x = 124,667,857.37/12,750.71
  6. Step 6: Final answer
    x = 9,777.33

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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.