Home / 13,364.62-20,040.74-7,521.23

Finding the Fourth Proportional to 13,364.62, 20,040.74 and 7,521.23

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Solution

The fourth proportional to 13,364.62, 20,040.74 and 7,521.23 is: 11,278.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.62 : 20,040.74 = 7,521.23 : x
  2. Step 2: Convert to fraction form
    13,364.62/20,040.74 = 7,521.23/x
  3. Step 3: Cross multiply
    13,364.62x = 20,040.74 × 7,521.23
  4. Step 4: Simplify right side
    13,364.62x = 150,730,914.71
  5. Step 5: Solve for x
    x = 150,730,914.71/13,364.62
  6. Step 6: Final answer
    x = 11,278.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.