Home / 8,045.40-12,065.14-2,779.08

Finding the Fourth Proportional to 8,045.40, 12,065.14 and 2,779.08

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Solution

The fourth proportional to 8,045.40, 12,065.14 and 2,779.08 is: 4,167.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,045.40 : 12,065.14 = 2,779.08 : x
  2. Step 2: Convert to fraction form
    8,045.40/12,065.14 = 2,779.08/x
  3. Step 3: Cross multiply
    8,045.40x = 12,065.14 × 2,779.08
  4. Step 4: Simplify right side
    8,045.40x = 33,529,989.27
  5. Step 5: Solve for x
    x = 33,529,989.27/8,045.40
  6. Step 6: Final answer
    x = 4,167.60

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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.