Home / 15,997.20-23,995.80-5,607.60

Finding the Fourth Proportional to 15,997.20, 23,995.80 and 5,607.60

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Solution

The fourth proportional to 15,997.20, 23,995.80 and 5,607.60 is: 8,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,997.20 : 23,995.80 = 5,607.60 : x
  2. Step 2: Convert to fraction form
    15,997.20/23,995.80 = 5,607.60/x
  3. Step 3: Cross multiply
    15,997.20x = 23,995.80 × 5,607.60
  4. Step 4: Simplify right side
    15,997.20x = 134,558,848.08
  5. Step 5: Solve for x
    x = 134,558,848.08/15,997.20
  6. Step 6: Final answer
    x = 8,411.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.