Home / 14,938.60-22,407.90-13,812.20

Finding the Fourth Proportional to 14,938.60, 22,407.90 and 13,812.20

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Solution

The fourth proportional to 14,938.60, 22,407.90 and 13,812.20 is: 20,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,938.60 : 22,407.90 = 13,812.20 : x
  2. Step 2: Convert to fraction form
    14,938.60/22,407.90 = 13,812.20/x
  3. Step 3: Cross multiply
    14,938.60x = 22,407.90 × 13,812.20
  4. Step 4: Simplify right side
    14,938.60x = 309,502,396.38
  5. Step 5: Solve for x
    x = 309,502,396.38/14,938.60
  6. Step 6: Final answer
    x = 20,718.30

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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.