Home / 11,392.02-15,721-6,356.10

Finding the Fourth Proportional to 11,392.02, 15,721 and 6,356.10

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Solution

The fourth proportional to 11,392.02, 15,721 and 6,356.10 is: 8,771.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.02 : 15,721 = 6,356.10 : x
  2. Step 2: Convert to fraction form
    11,392.02/15,721 = 6,356.10/x
  3. Step 3: Cross multiply
    11,392.02x = 15,721 × 6,356.10
  4. Step 4: Simplify right side
    11,392.02x = 99,924,248.10
  5. Step 5: Solve for x
    x = 99,924,248.10/11,392.02
  6. Step 6: Final answer
    x = 8,771.42

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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.