Home / 7,577.54-10,448.64-5,187.90

Finding the Fourth Proportional to 7,577.54, 10,448.64 and 5,187.90

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Solution

The fourth proportional to 7,577.54, 10,448.64 and 5,187.90 is: 7,153.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,577.54 : 10,448.64 = 5,187.90 : x
  2. Step 2: Convert to fraction form
    7,577.54/10,448.64 = 5,187.90/x
  3. Step 3: Cross multiply
    7,577.54x = 10,448.64 × 5,187.90
  4. Step 4: Simplify right side
    7,577.54x = 54,206,499.46
  5. Step 5: Solve for x
    x = 54,206,499.46/7,577.54
  6. Step 6: Final answer
    x = 7,153.58

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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.