Home / 10,519.71-15,779.43-3,124.14

Finding the Fourth Proportional to 10,519.71, 15,779.43 and 3,124.14

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Solution

The fourth proportional to 10,519.71, 15,779.43 and 3,124.14 is: 4,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.71 : 15,779.43 = 3,124.14 : x
  2. Step 2: Convert to fraction form
    10,519.71/15,779.43 = 3,124.14/x
  3. Step 3: Cross multiply
    10,519.71x = 15,779.43 × 3,124.14
  4. Step 4: Simplify right side
    10,519.71x = 49,297,148.44
  5. Step 5: Solve for x
    x = 49,297,148.44/10,519.71
  6. Step 6: Final answer
    x = 4,686.17

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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.