Home / 13,228.18-18,254.31-7,259.95

Finding the Fourth Proportional to 13,228.18, 18,254.31 and 7,259.95

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Solution

The fourth proportional to 13,228.18, 18,254.31 and 7,259.95 is: 10,018.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.18 : 18,254.31 = 7,259.95 : x
  2. Step 2: Convert to fraction form
    13,228.18/18,254.31 = 7,259.95/x
  3. Step 3: Cross multiply
    13,228.18x = 18,254.31 × 7,259.95
  4. Step 4: Simplify right side
    13,228.18x = 132,525,286.61
  5. Step 5: Solve for x
    x = 132,525,286.61/13,228.18
  6. Step 6: Final answer
    x = 10,018.41

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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.