Home / 14,038.72-21,042.96-7,458.28

Finding the Fourth Proportional to 14,038.72, 21,042.96 and 7,458.28

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Solution

The fourth proportional to 14,038.72, 21,042.96 and 7,458.28 is: 11,179.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.72 : 21,042.96 = 7,458.28 : x
  2. Step 2: Convert to fraction form
    14,038.72/21,042.96 = 7,458.28/x
  3. Step 3: Cross multiply
    14,038.72x = 21,042.96 × 7,458.28
  4. Step 4: Simplify right side
    14,038.72x = 156,944,287.71
  5. Step 5: Solve for x
    x = 156,944,287.71/14,038.72
  6. Step 6: Final answer
    x = 11,179.39

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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.