Home / 9,118.40-13,672.12-3,565.13

Finding the Fourth Proportional to 9,118.40, 13,672.12 and 3,565.13

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Solution

The fourth proportional to 9,118.40, 13,672.12 and 3,565.13 is: 5,345.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.40 : 13,672.12 = 3,565.13 : x
  2. Step 2: Convert to fraction form
    9,118.40/13,672.12 = 3,565.13/x
  3. Step 3: Cross multiply
    9,118.40x = 13,672.12 × 3,565.13
  4. Step 4: Simplify right side
    9,118.40x = 48,742,798.99
  5. Step 5: Solve for x
    x = 48,742,798.99/9,118.40
  6. Step 6: Final answer
    x = 5,345.55

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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.