Home / 7,715.51-11,557.77-3,549.70

Finding the Fourth Proportional to 7,715.51, 11,557.77 and 3,549.70

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Solution

The fourth proportional to 7,715.51, 11,557.77 and 3,549.70 is: 5,317.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.51 : 11,557.77 = 3,549.70 : x
  2. Step 2: Convert to fraction form
    7,715.51/11,557.77 = 3,549.70/x
  3. Step 3: Cross multiply
    7,715.51x = 11,557.77 × 3,549.70
  4. Step 4: Simplify right side
    7,715.51x = 41,026,616.17
  5. Step 5: Solve for x
    x = 41,026,616.17/7,715.51
  6. Step 6: Final answer
    x = 5,317.42

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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.