Home / 12,895.60-19,319.10-6,634.30

Finding the Fourth Proportional to 12,895.60, 19,319.10 and 6,634.30

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Solution

The fourth proportional to 12,895.60, 19,319.10 and 6,634.30 is: 9,938.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.60 : 19,319.10 = 6,634.30 : x
  2. Step 2: Convert to fraction form
    12,895.60/19,319.10 = 6,634.30/x
  3. Step 3: Cross multiply
    12,895.60x = 19,319.10 × 6,634.30
  4. Step 4: Simplify right side
    12,895.60x = 128,168,705.13
  5. Step 5: Solve for x
    x = 128,168,705.13/12,895.60
  6. Step 6: Final answer
    x = 9,938.95

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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.