Home / 5,515.17-7,574.75-5,109.36

Finding the Fourth Proportional to 5,515.17, 7,574.75 and 5,109.36

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Solution

The fourth proportional to 5,515.17, 7,574.75 and 5,109.36 is: 7,017.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.17 : 7,574.75 = 5,109.36 : x
  2. Step 2: Convert to fraction form
    5,515.17/7,574.75 = 5,109.36/x
  3. Step 3: Cross multiply
    5,515.17x = 7,574.75 × 5,109.36
  4. Step 4: Simplify right side
    5,515.17x = 38,702,099.11
  5. Step 5: Solve for x
    x = 38,702,099.11/5,515.17
  6. Step 6: Final answer
    x = 7,017.39

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.