Home / 12,345.76-17,037.20-6,757.28

Finding the Fourth Proportional to 12,345.76, 17,037.20 and 6,757.28

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Solution

The fourth proportional to 12,345.76, 17,037.20 and 6,757.28 is: 9,325.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.76 : 17,037.20 = 6,757.28 : x
  2. Step 2: Convert to fraction form
    12,345.76/17,037.20 = 6,757.28/x
  3. Step 3: Cross multiply
    12,345.76x = 17,037.20 × 6,757.28
  4. Step 4: Simplify right side
    12,345.76x = 115,125,130.82
  5. Step 5: Solve for x
    x = 115,125,130.82/12,345.76
  6. Step 6: Final answer
    x = 9,325.07

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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.