Home / 12,547.28-18,823.44-3,782.96

Finding the Fourth Proportional to 12,547.28, 18,823.44 and 3,782.96

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Solution

The fourth proportional to 12,547.28, 18,823.44 and 3,782.96 is: 5,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.28 : 18,823.44 = 3,782.96 : x
  2. Step 2: Convert to fraction form
    12,547.28/18,823.44 = 3,782.96/x
  3. Step 3: Cross multiply
    12,547.28x = 18,823.44 × 3,782.96
  4. Step 4: Simplify right side
    12,547.28x = 71,208,320.58
  5. Step 5: Solve for x
    x = 71,208,320.58/12,547.28
  6. Step 6: Final answer
    x = 5,675.20

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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.