Home / 14,053.40-21,080.10-5,290.28

Finding the Fourth Proportional to 14,053.40, 21,080.10 and 5,290.28

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Solution

The fourth proportional to 14,053.40, 21,080.10 and 5,290.28 is: 7,935.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,053.40 : 21,080.10 = 5,290.28 : x
  2. Step 2: Convert to fraction form
    14,053.40/21,080.10 = 5,290.28/x
  3. Step 3: Cross multiply
    14,053.40x = 21,080.10 × 5,290.28
  4. Step 4: Simplify right side
    14,053.40x = 111,519,631.43
  5. Step 5: Solve for x
    x = 111,519,631.43/14,053.40
  6. Step 6: Final answer
    x = 7,935.42

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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.