Home / 9,121.48-13,688.36-3,574.14

Finding the Fourth Proportional to 9,121.48, 13,688.36 and 3,574.14

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Solution

The fourth proportional to 9,121.48, 13,688.36 and 3,574.14 is: 5,363.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.48 : 13,688.36 = 3,574.14 : x
  2. Step 2: Convert to fraction form
    9,121.48/13,688.36 = 3,574.14/x
  3. Step 3: Cross multiply
    9,121.48x = 13,688.36 × 3,574.14
  4. Step 4: Simplify right side
    9,121.48x = 48,924,115.01
  5. Step 5: Solve for x
    x = 48,924,115.01/9,121.48
  6. Step 6: Final answer
    x = 5,363.62

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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.