Home / 7,179.95-9,909.23-4,036.13

Finding the Fourth Proportional to 7,179.95, 9,909.23 and 4,036.13

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Solution

The fourth proportional to 7,179.95, 9,909.23 and 4,036.13 is: 5,570.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.95 : 9,909.23 = 4,036.13 : x
  2. Step 2: Convert to fraction form
    7,179.95/9,909.23 = 4,036.13/x
  3. Step 3: Cross multiply
    7,179.95x = 9,909.23 × 4,036.13
  4. Step 4: Simplify right side
    7,179.95x = 39,994,870.75
  5. Step 5: Solve for x
    x = 39,994,870.75/7,179.95
  6. Step 6: Final answer
    x = 5,570.36

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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.