Home / 9,705.28-14,557.80-2,779.84

Finding the Fourth Proportional to 9,705.28, 14,557.80 and 2,779.84

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Solution

The fourth proportional to 9,705.28, 14,557.80 and 2,779.84 is: 4,169.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,705.28 : 14,557.80 = 2,779.84 : x
  2. Step 2: Convert to fraction form
    9,705.28/14,557.80 = 2,779.84/x
  3. Step 3: Cross multiply
    9,705.28x = 14,557.80 × 2,779.84
  4. Step 4: Simplify right side
    9,705.28x = 40,468,354.75
  5. Step 5: Solve for x
    x = 40,468,354.75/9,705.28
  6. Step 6: Final answer
    x = 4,169.73

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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.