Home / 8,148.04-11,234.78-7,557.55

Finding the Fourth Proportional to 8,148.04, 11,234.78 and 7,557.55

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Solution

The fourth proportional to 8,148.04, 11,234.78 and 7,557.55 is: 10,420.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.04 : 11,234.78 = 7,557.55 : x
  2. Step 2: Convert to fraction form
    8,148.04/11,234.78 = 7,557.55/x
  3. Step 3: Cross multiply
    8,148.04x = 11,234.78 × 7,557.55
  4. Step 4: Simplify right side
    8,148.04x = 84,907,345.71
  5. Step 5: Solve for x
    x = 84,907,345.71/8,148.04
  6. Step 6: Final answer
    x = 10,420.59

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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.