Home / 12,547.32-18,817.34-3,779.88

Finding the Fourth Proportional to 12,547.32, 18,817.34 and 3,779.88

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Solution

The fourth proportional to 12,547.32, 18,817.34 and 3,779.88 is: 5,668.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.32 : 18,817.34 = 3,779.88 : x
  2. Step 2: Convert to fraction form
    12,547.32/18,817.34 = 3,779.88/x
  3. Step 3: Cross multiply
    12,547.32x = 18,817.34 × 3,779.88
  4. Step 4: Simplify right side
    12,547.32x = 71,127,268.22
  5. Step 5: Solve for x
    x = 71,127,268.22/12,547.32
  6. Step 6: Final answer
    x = 5,668.72

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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.