Home / 13,281.39-19,934.37-6,712.20

Finding the Fourth Proportional to 13,281.39, 19,934.37 and 6,712.20

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Solution

The fourth proportional to 13,281.39, 19,934.37 and 6,712.20 is: 10,074.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.39 : 19,934.37 = 6,712.20 : x
  2. Step 2: Convert to fraction form
    13,281.39/19,934.37 = 6,712.20/x
  3. Step 3: Cross multiply
    13,281.39x = 19,934.37 × 6,712.20
  4. Step 4: Simplify right side
    13,281.39x = 133,803,478.31
  5. Step 5: Solve for x
    x = 133,803,478.31/13,281.39
  6. Step 6: Final answer
    x = 10,074.51

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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.