Home / 12,539.07-18,814.75-8,864.91

Finding the Fourth Proportional to 12,539.07, 18,814.75 and 8,864.91

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Solution

The fourth proportional to 12,539.07, 18,814.75 and 8,864.91 is: 13,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.07 : 18,814.75 = 8,864.91 : x
  2. Step 2: Convert to fraction form
    12,539.07/18,814.75 = 8,864.91/x
  3. Step 3: Cross multiply
    12,539.07x = 18,814.75 × 8,864.91
  4. Step 4: Simplify right side
    12,539.07x = 166,791,043.26
  5. Step 5: Solve for x
    x = 166,791,043.26/12,539.07
  6. Step 6: Final answer
    x = 13,301.71

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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.