Home / 8,515.02-12,775.09-4,357.93

Finding the Fourth Proportional to 8,515.02, 12,775.09 and 4,357.93

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Solution

The fourth proportional to 8,515.02, 12,775.09 and 4,357.93 is: 6,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.02 : 12,775.09 = 4,357.93 : x
  2. Step 2: Convert to fraction form
    8,515.02/12,775.09 = 4,357.93/x
  3. Step 3: Cross multiply
    8,515.02x = 12,775.09 × 4,357.93
  4. Step 4: Simplify right side
    8,515.02x = 55,672,913.58
  5. Step 5: Solve for x
    x = 55,672,913.58/8,515.02
  6. Step 6: Final answer
    x = 6,538.20

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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.