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Finding the Fourth Proportional to 12,345.44, 17,037 and 7,040.34

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Solution

The fourth proportional to 12,345.44, 17,037 and 7,040.34 is: 9,715.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.44 : 17,037 = 7,040.34 : x
  2. Step 2: Convert to fraction form
    12,345.44/17,037 = 7,040.34/x
  3. Step 3: Cross multiply
    12,345.44x = 17,037 × 7,040.34
  4. Step 4: Simplify right side
    12,345.44x = 119,946,272.58
  5. Step 5: Solve for x
    x = 119,946,272.58/12,345.44
  6. Step 6: Final answer
    x = 9,715.84

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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.