Home / 18,835.02-28,252.54-8,439.48

Finding the Fourth Proportional to 18,835.02, 28,252.54 and 8,439.48

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Solution

The fourth proportional to 18,835.02, 28,252.54 and 8,439.48 is: 12,659.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.02 : 28,252.54 = 8,439.48 : x
  2. Step 2: Convert to fraction form
    18,835.02/28,252.54 = 8,439.48/x
  3. Step 3: Cross multiply
    18,835.02x = 28,252.54 × 8,439.48
  4. Step 4: Simplify right side
    18,835.02x = 238,436,746.28
  5. Step 5: Solve for x
    x = 238,436,746.28/18,835.02
  6. Step 6: Final answer
    x = 12,659.22

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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.