Home / 15,277.68-21,072.96-9,973.80

Finding the Fourth Proportional to 15,277.68, 21,072.96 and 9,973.80

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Solution

The fourth proportional to 15,277.68, 21,072.96 and 9,973.80 is: 13,757.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,277.68 : 21,072.96 = 9,973.80 : x
  2. Step 2: Convert to fraction form
    15,277.68/21,072.96 = 9,973.80/x
  3. Step 3: Cross multiply
    15,277.68x = 21,072.96 × 9,973.80
  4. Step 4: Simplify right side
    15,277.68x = 210,177,488.45
  5. Step 5: Solve for x
    x = 210,177,488.45/15,277.68
  6. Step 6: Final answer
    x = 13,757.16

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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.