Home / 12,887.60-19,307.10-6,626.30

Finding the Fourth Proportional to 12,887.60, 19,307.10 and 6,626.30

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Solution

The fourth proportional to 12,887.60, 19,307.10 and 6,626.30 is: 9,926.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.60 : 19,307.10 = 6,626.30 : x
  2. Step 2: Convert to fraction form
    12,887.60/19,307.10 = 6,626.30/x
  3. Step 3: Cross multiply
    12,887.60x = 19,307.10 × 6,626.30
  4. Step 4: Simplify right side
    12,887.60x = 127,934,636.73
  5. Step 5: Solve for x
    x = 127,934,636.73/12,887.60
  6. Step 6: Final answer
    x = 9,926.96

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1.5x scale

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.