Home / 15,239.05-21,038.97-9,578.59

Finding the Fourth Proportional to 15,239.05, 21,038.97 and 9,578.59

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Solution

The fourth proportional to 15,239.05, 21,038.97 and 9,578.59 is: 13,224.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.05 : 21,038.97 = 9,578.59 : x
  2. Step 2: Convert to fraction form
    15,239.05/21,038.97 = 9,578.59/x
  3. Step 3: Cross multiply
    15,239.05x = 21,038.97 × 9,578.59
  4. Step 4: Simplify right side
    15,239.05x = 201,523,667.65
  5. Step 5: Solve for x
    x = 201,523,667.65/15,239.05
  6. Step 6: Final answer
    x = 13,224.16

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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.