Home / 12,340.90-17,028.57-7,035.46

Finding the Fourth Proportional to 12,340.90, 17,028.57 and 7,035.46

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Solution

The fourth proportional to 12,340.90, 17,028.57 and 7,035.46 is: 9,707.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.90 : 17,028.57 = 7,035.46 : x
  2. Step 2: Convert to fraction form
    12,340.90/17,028.57 = 7,035.46/x
  3. Step 3: Cross multiply
    12,340.90x = 17,028.57 × 7,035.46
  4. Step 4: Simplify right side
    12,340.90x = 119,803,823.09
  5. Step 5: Solve for x
    x = 119,803,823.09/12,340.90
  6. Step 6: Final answer
    x = 9,707.87

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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.