Home / 25,285.10-37,916.58-8,640.68

Finding the Fourth Proportional to 25,285.10, 37,916.58 and 8,640.68

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Solution

The fourth proportional to 25,285.10, 37,916.58 and 8,640.68 is: 12,957.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,285.10 : 37,916.58 = 8,640.68 : x
  2. Step 2: Convert to fraction form
    25,285.10/37,916.58 = 8,640.68/x
  3. Step 3: Cross multiply
    25,285.10x = 37,916.58 × 8,640.68
  4. Step 4: Simplify right side
    25,285.10x = 327,625,034.47
  5. Step 5: Solve for x
    x = 327,625,034.47/25,285.10
  6. Step 6: Final answer
    x = 12,957.24

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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.