Home / 14,223.48-21,353.70-10,938.90

Finding the Fourth Proportional to 14,223.48, 21,353.70 and 10,938.90

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Solution

The fourth proportional to 14,223.48, 21,353.70 and 10,938.90 is: 16,422.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,223.48 : 21,353.70 = 10,938.90 : x
  2. Step 2: Convert to fraction form
    14,223.48/21,353.70 = 10,938.90/x
  3. Step 3: Cross multiply
    14,223.48x = 21,353.70 × 10,938.90
  4. Step 4: Simplify right side
    14,223.48x = 233,585,988.93
  5. Step 5: Solve for x
    x = 233,585,988.93/14,223.48
  6. Step 6: Final answer
    x = 16,422.56

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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.