Home / 14,765.13-20,360.43-9,722.90

Finding the Fourth Proportional to 14,765.13, 20,360.43 and 9,722.90

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Solution

The fourth proportional to 14,765.13, 20,360.43 and 9,722.90 is: 13,407.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,765.13 : 20,360.43 = 9,722.90 : x
  2. Step 2: Convert to fraction form
    14,765.13/20,360.43 = 9,722.90/x
  3. Step 3: Cross multiply
    14,765.13x = 20,360.43 × 9,722.90
  4. Step 4: Simplify right side
    14,765.13x = 197,962,323.04
  5. Step 5: Solve for x
    x = 197,962,323.04/14,765.13
  6. Step 6: Final answer
    x = 13,407.42

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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.