Home / 15,385.79-23,078.68-4,856.87

Finding the Fourth Proportional to 15,385.79, 23,078.68 and 4,856.87

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Solution

The fourth proportional to 15,385.79, 23,078.68 and 4,856.87 is: 7,285.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385.79 : 23,078.68 = 4,856.87 : x
  2. Step 2: Convert to fraction form
    15,385.79/23,078.68 = 4,856.87/x
  3. Step 3: Cross multiply
    15,385.79x = 23,078.68 × 4,856.87
  4. Step 4: Simplify right side
    15,385.79x = 112,090,148.53
  5. Step 5: Solve for x
    x = 112,090,148.53/15,385.79
  6. Step 6: Final answer
    x = 7,285.30

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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.