Home / 7,257.05-10,003.15-5,721.47

Finding the Fourth Proportional to 7,257.05, 10,003.15 and 5,721.47

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Solution

The fourth proportional to 7,257.05, 10,003.15 and 5,721.47 is: 7,886.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,257.05 : 10,003.15 = 5,721.47 : x
  2. Step 2: Convert to fraction form
    7,257.05/10,003.15 = 5,721.47/x
  3. Step 3: Cross multiply
    7,257.05x = 10,003.15 × 5,721.47
  4. Step 4: Simplify right side
    7,257.05x = 57,232,722.63
  5. Step 5: Solve for x
    x = 57,232,722.63/7,257.05
  6. Step 6: Final answer
    x = 7,886.50

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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.