Home / 15,225.03-21,008.97-8,510.47

Finding the Fourth Proportional to 15,225.03, 21,008.97 and 8,510.47

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Solution

The fourth proportional to 15,225.03, 21,008.97 and 8,510.47 is: 11,743.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,225.03 : 21,008.97 = 8,510.47 : x
  2. Step 2: Convert to fraction form
    15,225.03/21,008.97 = 8,510.47/x
  3. Step 3: Cross multiply
    15,225.03x = 21,008.97 × 8,510.47
  4. Step 4: Simplify right side
    15,225.03x = 178,796,156.39
  5. Step 5: Solve for x
    x = 178,796,156.39/15,225.03
  6. Step 6: Final answer
    x = 11,743.57

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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.