Home / 14,400.53-19,876.21-9,620.72

Finding the Fourth Proportional to 14,400.53, 19,876.21 and 9,620.72

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Solution

The fourth proportional to 14,400.53, 19,876.21 and 9,620.72 is: 13,278.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,400.53 : 19,876.21 = 9,620.72 : x
  2. Step 2: Convert to fraction form
    14,400.53/19,876.21 = 9,620.72/x
  3. Step 3: Cross multiply
    14,400.53x = 19,876.21 × 9,620.72
  4. Step 4: Simplify right side
    14,400.53x = 191,223,327.64
  5. Step 5: Solve for x
    x = 191,223,327.64/14,400.53
  6. Step 6: Final answer
    x = 13,278.91

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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.