Home / 7,399.98-10,212.30-4,257.18

Finding the Fourth Proportional to 7,399.98, 10,212.30 and 4,257.18

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Solution

The fourth proportional to 7,399.98, 10,212.30 and 4,257.18 is: 5,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,399.98 : 10,212.30 = 4,257.18 : x
  2. Step 2: Convert to fraction form
    7,399.98/10,212.30 = 4,257.18/x
  3. Step 3: Cross multiply
    7,399.98x = 10,212.30 × 4,257.18
  4. Step 4: Simplify right side
    7,399.98x = 43,475,599.31
  5. Step 5: Solve for x
    x = 43,475,599.31/7,399.98
  6. Step 6: Final answer
    x = 5,875.10

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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.