Home / 8,300.80-12,432.75-4,782.52

Finding the Fourth Proportional to 8,300.80, 12,432.75 and 4,782.52

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Solution

The fourth proportional to 8,300.80, 12,432.75 and 4,782.52 is: 7,163.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,300.80 : 12,432.75 = 4,782.52 : x
  2. Step 2: Convert to fraction form
    8,300.80/12,432.75 = 4,782.52/x
  3. Step 3: Cross multiply
    8,300.80x = 12,432.75 × 4,782.52
  4. Step 4: Simplify right side
    8,300.80x = 59,459,875.53
  5. Step 5: Solve for x
    x = 59,459,875.53/8,300.80
  6. Step 6: Final answer
    x = 7,163.15

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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.