Home / 14,059.80-21,065.40-9,126.90

Finding the Fourth Proportional to 14,059.80, 21,065.40 and 9,126.90

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Solution

The fourth proportional to 14,059.80, 21,065.40 and 9,126.90 is: 13,674.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,059.80 : 21,065.40 = 9,126.90 : x
  2. Step 2: Convert to fraction form
    14,059.80/21,065.40 = 9,126.90/x
  3. Step 3: Cross multiply
    14,059.80x = 21,065.40 × 9,126.90
  4. Step 4: Simplify right side
    14,059.80x = 192,261,799.26
  5. Step 5: Solve for x
    x = 192,261,799.26/14,059.80
  6. Step 6: Final answer
    x = 13,674.58

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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.