Home / 14,141.70-21,200.40-7,216.20

Finding the Fourth Proportional to 14,141.70, 21,200.40 and 7,216.20

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Solution

The fourth proportional to 14,141.70, 21,200.40 and 7,216.20 is: 10,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.70 : 21,200.40 = 7,216.20 : x
  2. Step 2: Convert to fraction form
    14,141.70/21,200.40 = 7,216.20/x
  3. Step 3: Cross multiply
    14,141.70x = 21,200.40 × 7,216.20
  4. Step 4: Simplify right side
    14,141.70x = 152,986,326.48
  5. Step 5: Solve for x
    x = 152,986,326.48/14,141.70
  6. Step 6: Final answer
    x = 10,818.10

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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.