Home / 12,750.45-17,595.38-7,085.16

Finding the Fourth Proportional to 12,750.45, 17,595.38 and 7,085.16

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Solution

The fourth proportional to 12,750.45, 17,595.38 and 7,085.16 is: 9,777.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.45 : 17,595.38 = 7,085.16 : x
  2. Step 2: Convert to fraction form
    12,750.45/17,595.38 = 7,085.16/x
  3. Step 3: Cross multiply
    12,750.45x = 17,595.38 × 7,085.16
  4. Step 4: Simplify right side
    12,750.45x = 124,666,082.56
  5. Step 5: Solve for x
    x = 124,666,082.56/12,750.45
  6. Step 6: Final answer
    x = 9,777.39

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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.