Home / 18,607.02-27,870.44-8,731.50

Finding the Fourth Proportional to 18,607.02, 27,870.44 and 8,731.50

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Solution

The fourth proportional to 18,607.02, 27,870.44 and 8,731.50 is: 13,078.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.02 : 27,870.44 = 8,731.50 : x
  2. Step 2: Convert to fraction form
    18,607.02/27,870.44 = 8,731.50/x
  3. Step 3: Cross multiply
    18,607.02x = 27,870.44 × 8,731.50
  4. Step 4: Simplify right side
    18,607.02x = 243,350,746.86
  5. Step 5: Solve for x
    x = 243,350,746.86/18,607.02
  6. Step 6: Final answer
    x = 13,078.44

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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.