Home / 12,345.99-17,037.48-6,680.73

Finding the Fourth Proportional to 12,345.99, 17,037.48 and 6,680.73

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Solution

The fourth proportional to 12,345.99, 17,037.48 and 6,680.73 is: 9,219.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.99 : 17,037.48 = 6,680.73 : x
  2. Step 2: Convert to fraction form
    12,345.99/17,037.48 = 6,680.73/x
  3. Step 3: Cross multiply
    12,345.99x = 17,037.48 × 6,680.73
  4. Step 4: Simplify right side
    12,345.99x = 113,822,803.76
  5. Step 5: Solve for x
    x = 113,822,803.76/12,345.99
  6. Step 6: Final answer
    x = 9,219.41

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Double scale
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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.