Home / 14,071.80-21,068.82-7,112.28

Finding the Fourth Proportional to 14,071.80, 21,068.82 and 7,112.28

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Solution

The fourth proportional to 14,071.80, 21,068.82 and 7,112.28 is: 10,648.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,071.80 : 21,068.82 = 7,112.28 : x
  2. Step 2: Convert to fraction form
    14,071.80/21,068.82 = 7,112.28/x
  3. Step 3: Cross multiply
    14,071.80x = 21,068.82 × 7,112.28
  4. Step 4: Simplify right side
    14,071.80x = 149,847,347.11
  5. Step 5: Solve for x
    x = 149,847,347.11/14,071.80
  6. Step 6: Final answer
    x = 10,648.77

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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.