Home / 15,192.36-20,975.46-9,817.20

Finding the Fourth Proportional to 15,192.36, 20,975.46 and 9,817.20

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Solution

The fourth proportional to 15,192.36, 20,975.46 and 9,817.20 is: 13,554.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,192.36 : 20,975.46 = 9,817.20 : x
  2. Step 2: Convert to fraction form
    15,192.36/20,975.46 = 9,817.20/x
  3. Step 3: Cross multiply
    15,192.36x = 20,975.46 × 9,817.20
  4. Step 4: Simplify right side
    15,192.36x = 205,920,285.91
  5. Step 5: Solve for x
    x = 205,920,285.91/15,192.36
  6. Step 6: Final answer
    x = 13,554.20

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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.