Home / 8,307.02-12,455.67-3,113.30

Finding the Fourth Proportional to 8,307.02, 12,455.67 and 3,113.30

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Solution

The fourth proportional to 8,307.02, 12,455.67 and 3,113.30 is: 4,668.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,307.02 : 12,455.67 = 3,113.30 : x
  2. Step 2: Convert to fraction form
    8,307.02/12,455.67 = 3,113.30/x
  3. Step 3: Cross multiply
    8,307.02x = 12,455.67 × 3,113.30
  4. Step 4: Simplify right side
    8,307.02x = 38,778,237.41
  5. Step 5: Solve for x
    x = 38,778,237.41/8,307.02
  6. Step 6: Final answer
    x = 4,668.13

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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.