Home / 8,515.51-12,762.45-3,830.52

Finding the Fourth Proportional to 8,515.51, 12,762.45 and 3,830.52

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Solution

The fourth proportional to 8,515.51, 12,762.45 and 3,830.52 is: 5,740.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.51 : 12,762.45 = 3,830.52 : x
  2. Step 2: Convert to fraction form
    8,515.51/12,762.45 = 3,830.52/x
  3. Step 3: Cross multiply
    8,515.51x = 12,762.45 × 3,830.52
  4. Step 4: Simplify right side
    8,515.51x = 48,886,756.16
  5. Step 5: Solve for x
    x = 48,886,756.16/8,515.51
  6. Step 6: Final answer
    x = 5,740.91

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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.