Home / 12,340.18-17,028.40-7,303.51

Finding the Fourth Proportional to 12,340.18, 17,028.40 and 7,303.51

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Solution

The fourth proportional to 12,340.18, 17,028.40 and 7,303.51 is: 10,078.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.18 : 17,028.40 = 7,303.51 : x
  2. Step 2: Convert to fraction form
    12,340.18/17,028.40 = 7,303.51/x
  3. Step 3: Cross multiply
    12,340.18x = 17,028.40 × 7,303.51
  4. Step 4: Simplify right side
    12,340.18x = 124,367,053.17
  5. Step 5: Solve for x
    x = 124,367,053.17/12,340.18
  6. Step 6: Final answer
    x = 10,078.22

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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.