Home / 13,069.36-18,034.64-7,765.52

Finding the Fourth Proportional to 13,069.36, 18,034.64 and 7,765.52

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Solution

The fourth proportional to 13,069.36, 18,034.64 and 7,765.52 is: 10,715.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069.36 : 18,034.64 = 7,765.52 : x
  2. Step 2: Convert to fraction form
    13,069.36/18,034.64 = 7,765.52/x
  3. Step 3: Cross multiply
    13,069.36x = 18,034.64 × 7,765.52
  4. Step 4: Simplify right side
    13,069.36x = 140,048,357.61
  5. Step 5: Solve for x
    x = 140,048,357.61/13,069.36
  6. Step 6: Final answer
    x = 10,715.78

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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.