Home / 8,330.96-12,515.88-4,870.64

Finding the Fourth Proportional to 8,330.96, 12,515.88 and 4,870.64

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Solution

The fourth proportional to 8,330.96, 12,515.88 and 4,870.64 is: 7,317.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.96 : 12,515.88 = 4,870.64 : x
  2. Step 2: Convert to fraction form
    8,330.96/12,515.88 = 4,870.64/x
  3. Step 3: Cross multiply
    8,330.96x = 12,515.88 × 4,870.64
  4. Step 4: Simplify right side
    8,330.96x = 60,960,345.76
  5. Step 5: Solve for x
    x = 60,960,345.76/8,330.96
  6. Step 6: Final answer
    x = 7,317.33

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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.