Home / 12,866.17-19,301.69-4,430.43

Finding the Fourth Proportional to 12,866.17, 19,301.69 and 4,430.43

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Solution

The fourth proportional to 12,866.17, 19,301.69 and 4,430.43 is: 6,646.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866.17 : 19,301.69 = 4,430.43 : x
  2. Step 2: Convert to fraction form
    12,866.17/19,301.69 = 4,430.43/x
  3. Step 3: Cross multiply
    12,866.17x = 19,301.69 × 4,430.43
  4. Step 4: Simplify right side
    12,866.17x = 85,514,786.43
  5. Step 5: Solve for x
    x = 85,514,786.43/12,866.17
  6. Step 6: Final answer
    x = 6,646.48

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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.