Home / 19,770.98-27,284.35-10,818.68

Finding the Fourth Proportional to 19,770.98, 27,284.35 and 10,818.68

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Solution

The fourth proportional to 19,770.98, 27,284.35 and 10,818.68 is: 14,929.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770.98 : 27,284.35 = 10,818.68 : x
  2. Step 2: Convert to fraction form
    19,770.98/27,284.35 = 10,818.68/x
  3. Step 3: Cross multiply
    19,770.98x = 27,284.35 × 10,818.68
  4. Step 4: Simplify right side
    19,770.98x = 295,180,515.24
  5. Step 5: Solve for x
    x = 295,180,515.24/19,770.98
  6. Step 6: Final answer
    x = 14,929.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.