Home / 18,935.02-28,407.64-5,787.03

Finding the Fourth Proportional to 18,935.02, 28,407.64 and 5,787.03

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Solution

The fourth proportional to 18,935.02, 28,407.64 and 5,787.03 is: 8,682.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.02 : 28,407.64 = 5,787.03 : x
  2. Step 2: Convert to fraction form
    18,935.02/28,407.64 = 5,787.03/x
  3. Step 3: Cross multiply
    18,935.02x = 28,407.64 × 5,787.03
  4. Step 4: Simplify right side
    18,935.02x = 164,395,864.91
  5. Step 5: Solve for x
    x = 164,395,864.91/18,935.02
  6. Step 6: Final answer
    x = 8,682.11

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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.