Home / 15,386.43-23,078.50-4,856.81

Finding the Fourth Proportional to 15,386.43, 23,078.50 and 4,856.81

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Solution

The fourth proportional to 15,386.43, 23,078.50 and 4,856.81 is: 7,284.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.43 : 23,078.50 = 4,856.81 : x
  2. Step 2: Convert to fraction form
    15,386.43/23,078.50 = 4,856.81/x
  3. Step 3: Cross multiply
    15,386.43x = 23,078.50 × 4,856.81
  4. Step 4: Simplify right side
    15,386.43x = 112,087,935.14
  5. Step 5: Solve for x
    x = 112,087,935.14/15,386.43
  6. Step 6: Final answer
    x = 7,284.86

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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.