Home / 15,771.02-21,760.14-10,392.86

Finding the Fourth Proportional to 15,771.02, 21,760.14 and 10,392.86

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Solution

The fourth proportional to 15,771.02, 21,760.14 and 10,392.86 is: 14,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.02 : 21,760.14 = 10,392.86 : x
  2. Step 2: Convert to fraction form
    15,771.02/21,760.14 = 10,392.86/x
  3. Step 3: Cross multiply
    15,771.02x = 21,760.14 × 10,392.86
  4. Step 4: Simplify right side
    15,771.02x = 226,150,088.60
  5. Step 5: Solve for x
    x = 226,150,088.60/15,771.02
  6. Step 6: Final answer
    x = 14,339.60

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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.