Home / 10,257.26-15,374.95-5,320.11

Finding the Fourth Proportional to 10,257.26, 15,374.95 and 5,320.11

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Solution

The fourth proportional to 10,257.26, 15,374.95 and 5,320.11 is: 7,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.26 : 15,374.95 = 5,320.11 : x
  2. Step 2: Convert to fraction form
    10,257.26/15,374.95 = 5,320.11/x
  3. Step 3: Cross multiply
    10,257.26x = 15,374.95 × 5,320.11
  4. Step 4: Simplify right side
    10,257.26x = 81,796,362.32
  5. Step 5: Solve for x
    x = 81,796,362.32/10,257.26
  6. Step 6: Final answer
    x = 7,974.49

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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.