Home / 12,656.71-18,985.07-3,296.70

Finding the Fourth Proportional to 12,656.71, 18,985.07 and 3,296.70

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Solution

The fourth proportional to 12,656.71, 18,985.07 and 3,296.70 is: 4,945.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.71 : 18,985.07 = 3,296.70 : x
  2. Step 2: Convert to fraction form
    12,656.71/18,985.07 = 3,296.70/x
  3. Step 3: Cross multiply
    12,656.71x = 18,985.07 × 3,296.70
  4. Step 4: Simplify right side
    12,656.71x = 62,588,069.97
  5. Step 5: Solve for x
    x = 62,588,069.97/12,656.71
  6. Step 6: Final answer
    x = 4,945.05

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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.