Home / 13,541.86-20,310.73-5,220.66

Finding the Fourth Proportional to 13,541.86, 20,310.73 and 5,220.66

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Solution

The fourth proportional to 13,541.86, 20,310.73 and 5,220.66 is: 7,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.86 : 20,310.73 = 5,220.66 : x
  2. Step 2: Convert to fraction form
    13,541.86/20,310.73 = 5,220.66/x
  3. Step 3: Cross multiply
    13,541.86x = 20,310.73 × 5,220.66
  4. Step 4: Simplify right side
    13,541.86x = 106,035,402.63
  5. Step 5: Solve for x
    x = 106,035,402.63/13,541.86
  6. Step 6: Final answer
    x = 7,830.20

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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.