Home / 7,438.51-11,159.64-5,251.51

Finding the Fourth Proportional to 7,438.51, 11,159.64 and 5,251.51

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Solution

The fourth proportional to 7,438.51, 11,159.64 and 5,251.51 is: 7,878.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.51 : 11,159.64 = 5,251.51 : x
  2. Step 2: Convert to fraction form
    7,438.51/11,159.64 = 5,251.51/x
  3. Step 3: Cross multiply
    7,438.51x = 11,159.64 × 5,251.51
  4. Step 4: Simplify right side
    7,438.51x = 58,604,961.06
  5. Step 5: Solve for x
    x = 58,604,961.06/7,438.51
  6. Step 6: Final answer
    x = 7,878.59

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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.