Home / 14,488.32-19,994.40-8,200.80

Finding the Fourth Proportional to 14,488.32, 19,994.40 and 8,200.80

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Solution

The fourth proportional to 14,488.32, 19,994.40 and 8,200.80 is: 11,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,488.32 : 19,994.40 = 8,200.80 : x
  2. Step 2: Convert to fraction form
    14,488.32/19,994.40 = 8,200.80/x
  3. Step 3: Cross multiply
    14,488.32x = 19,994.40 × 8,200.80
  4. Step 4: Simplify right side
    14,488.32x = 163,970,075.52
  5. Step 5: Solve for x
    x = 163,970,075.52/14,488.32
  6. Step 6: Final answer
    x = 11,317.40

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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.