Home / 14,038.32-21,048.60-7,886.64

Finding the Fourth Proportional to 14,038.32, 21,048.60 and 7,886.64

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Solution

The fourth proportional to 14,038.32, 21,048.60 and 7,886.64 is: 11,824.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.32 : 21,048.60 = 7,886.64 : x
  2. Step 2: Convert to fraction form
    14,038.32/21,048.60 = 7,886.64/x
  3. Step 3: Cross multiply
    14,038.32x = 21,048.60 × 7,886.64
  4. Step 4: Simplify right side
    14,038.32x = 166,002,730.70
  5. Step 5: Solve for x
    x = 166,002,730.70/14,038.32
  6. Step 6: Final answer
    x = 11,824.97

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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.