Home / 14,439.78-21,656.61-4,579.92

Finding the Fourth Proportional to 14,439.78, 21,656.61 and 4,579.92

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Solution

The fourth proportional to 14,439.78, 21,656.61 and 4,579.92 is: 6,868.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.78 : 21,656.61 = 4,579.92 : x
  2. Step 2: Convert to fraction form
    14,439.78/21,656.61 = 4,579.92/x
  3. Step 3: Cross multiply
    14,439.78x = 21,656.61 × 4,579.92
  4. Step 4: Simplify right side
    14,439.78x = 99,185,541.27
  5. Step 5: Solve for x
    x = 99,185,541.27/14,439.78
  6. Step 6: Final answer
    x = 6,868.91

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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.