Home / 18,285.57-25,234.02-9,902.07

Finding the Fourth Proportional to 18,285.57, 25,234.02 and 9,902.07

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Solution

The fourth proportional to 18,285.57, 25,234.02 and 9,902.07 is: 13,664.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.57 : 25,234.02 = 9,902.07 : x
  2. Step 2: Convert to fraction form
    18,285.57/25,234.02 = 9,902.07/x
  3. Step 3: Cross multiply
    18,285.57x = 25,234.02 × 9,902.07
  4. Step 4: Simplify right side
    18,285.57x = 249,869,032.42
  5. Step 5: Solve for x
    x = 249,869,032.42/18,285.57
  6. Step 6: Final answer
    x = 13,664.82

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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.