Home / 8,812.16-13,215.18-3,545.60

Finding the Fourth Proportional to 8,812.16, 13,215.18 and 3,545.60

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Solution

The fourth proportional to 8,812.16, 13,215.18 and 3,545.60 is: 5,317.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.16 : 13,215.18 = 3,545.60 : x
  2. Step 2: Convert to fraction form
    8,812.16/13,215.18 = 3,545.60/x
  3. Step 3: Cross multiply
    8,812.16x = 13,215.18 × 3,545.60
  4. Step 4: Simplify right side
    8,812.16x = 46,855,742.21
  5. Step 5: Solve for x
    x = 46,855,742.21/8,812.16
  6. Step 6: Final answer
    x = 5,317.17

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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.