Home / 7,454.58-10,269.43-6,388.98

Finding the Fourth Proportional to 7,454.58, 10,269.43 and 6,388.98

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Solution

The fourth proportional to 7,454.58, 10,269.43 and 6,388.98 is: 8,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,454.58 : 10,269.43 = 6,388.98 : x
  2. Step 2: Convert to fraction form
    7,454.58/10,269.43 = 6,388.98/x
  3. Step 3: Cross multiply
    7,454.58x = 10,269.43 × 6,388.98
  4. Step 4: Simplify right side
    7,454.58x = 65,611,164.34
  5. Step 5: Solve for x
    x = 65,611,164.34/7,454.58
  6. Step 6: Final answer
    x = 8,801.45

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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.