Home / 14,057.80-19,398.61-7,770.17

Finding the Fourth Proportional to 14,057.80, 19,398.61 and 7,770.17

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Solution

The fourth proportional to 14,057.80, 19,398.61 and 7,770.17 is: 10,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,057.80 : 19,398.61 = 7,770.17 : x
  2. Step 2: Convert to fraction form
    14,057.80/19,398.61 = 7,770.17/x
  3. Step 3: Cross multiply
    14,057.80x = 19,398.61 × 7,770.17
  4. Step 4: Simplify right side
    14,057.80x = 150,730,497.46
  5. Step 5: Solve for x
    x = 150,730,497.46/14,057.80
  6. Step 6: Final answer
    x = 10,722.20

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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.