Home / 7,518.17-11,231.15-5,420.27

Finding the Fourth Proportional to 7,518.17, 11,231.15 and 5,420.27

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Solution

The fourth proportional to 7,518.17, 11,231.15 and 5,420.27 is: 8,097.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.17 : 11,231.15 = 5,420.27 : x
  2. Step 2: Convert to fraction form
    7,518.17/11,231.15 = 5,420.27/x
  3. Step 3: Cross multiply
    7,518.17x = 11,231.15 × 5,420.27
  4. Step 4: Simplify right side
    7,518.17x = 60,875,865.41
  5. Step 5: Solve for x
    x = 60,875,865.41/7,518.17
  6. Step 6: Final answer
    x = 8,097.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.