Home / 12,345.11-17,037.24-7,040.32

Finding the Fourth Proportional to 12,345.11, 17,037.24 and 7,040.32

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Solution

The fourth proportional to 12,345.11, 17,037.24 and 7,040.32 is: 9,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.11 : 17,037.24 = 7,040.32 : x
  2. Step 2: Convert to fraction form
    12,345.11/17,037.24 = 7,040.32/x
  3. Step 3: Cross multiply
    12,345.11x = 17,037.24 × 7,040.32
  4. Step 4: Simplify right side
    12,345.11x = 119,947,552.52
  5. Step 5: Solve for x
    x = 119,947,552.52/12,345.11
  6. Step 6: Final answer
    x = 9,716.20

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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.