Home / 7,192.08-9,911.61-5,199.21

Finding the Fourth Proportional to 7,192.08, 9,911.61 and 5,199.21

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Solution

The fourth proportional to 7,192.08, 9,911.61 and 5,199.21 is: 7,165.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,192.08 : 9,911.61 = 5,199.21 : x
  2. Step 2: Convert to fraction form
    7,192.08/9,911.61 = 5,199.21/x
  3. Step 3: Cross multiply
    7,192.08x = 9,911.61 × 5,199.21
  4. Step 4: Simplify right side
    7,192.08x = 51,532,541.83
  5. Step 5: Solve for x
    x = 51,532,541.83/7,192.08
  6. Step 6: Final answer
    x = 7,165.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.