Home / 14,490.24-19,994.84-8,117.20

Finding the Fourth Proportional to 14,490.24, 19,994.84 and 8,117.20

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Solution

The fourth proportional to 14,490.24, 19,994.84 and 8,117.20 is: 11,200.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.24 : 19,994.84 = 8,117.20 : x
  2. Step 2: Convert to fraction form
    14,490.24/19,994.84 = 8,117.20/x
  3. Step 3: Cross multiply
    14,490.24x = 19,994.84 × 8,117.20
  4. Step 4: Simplify right side
    14,490.24x = 162,302,115.25
  5. Step 5: Solve for x
    x = 162,302,115.25/14,490.24
  6. Step 6: Final answer
    x = 11,200.79

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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.