Home / 7,779.28-11,669.59-3,337.15

Finding the Fourth Proportional to 7,779.28, 11,669.59 and 3,337.15

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Solution

The fourth proportional to 7,779.28, 11,669.59 and 3,337.15 is: 5,006.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.28 : 11,669.59 = 3,337.15 : x
  2. Step 2: Convert to fraction form
    7,779.28/11,669.59 = 3,337.15/x
  3. Step 3: Cross multiply
    7,779.28x = 11,669.59 × 3,337.15
  4. Step 4: Simplify right side
    7,779.28x = 38,943,178.53
  5. Step 5: Solve for x
    x = 38,943,178.53/7,779.28
  6. Step 6: Final answer
    x = 5,006.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.