Home / 15,213.57-21,004.28-9,923.46

Finding the Fourth Proportional to 15,213.57, 21,004.28 and 9,923.46

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Solution

The fourth proportional to 15,213.57, 21,004.28 and 9,923.46 is: 13,700.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.57 : 21,004.28 = 9,923.46 : x
  2. Step 2: Convert to fraction form
    15,213.57/21,004.28 = 9,923.46/x
  3. Step 3: Cross multiply
    15,213.57x = 21,004.28 × 9,923.46
  4. Step 4: Simplify right side
    15,213.57x = 208,435,132.41
  5. Step 5: Solve for x
    x = 208,435,132.41/15,213.57
  6. Step 6: Final answer
    x = 13,700.61

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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.