Home / 13,065.18-18,032.24-7,400.23

Finding the Fourth Proportional to 13,065.18, 18,032.24 and 7,400.23

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Solution

The fourth proportional to 13,065.18, 18,032.24 and 7,400.23 is: 10,213.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065.18 : 18,032.24 = 7,400.23 : x
  2. Step 2: Convert to fraction form
    13,065.18/18,032.24 = 7,400.23/x
  3. Step 3: Cross multiply
    13,065.18x = 18,032.24 × 7,400.23
  4. Step 4: Simplify right side
    13,065.18x = 133,442,686.41
  5. Step 5: Solve for x
    x = 133,442,686.41/13,065.18
  6. Step 6: Final answer
    x = 10,213.62

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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.