Home / 14,064.47-21,086.30-8,516.51

Finding the Fourth Proportional to 14,064.47, 21,086.30 and 8,516.51

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Solution

The fourth proportional to 14,064.47, 21,086.30 and 8,516.51 is: 12,768.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,064.47 : 21,086.30 = 8,516.51 : x
  2. Step 2: Convert to fraction form
    14,064.47/21,086.30 = 8,516.51/x
  3. Step 3: Cross multiply
    14,064.47x = 21,086.30 × 8,516.51
  4. Step 4: Simplify right side
    14,064.47x = 179,581,536.80
  5. Step 5: Solve for x
    x = 179,581,536.80/14,064.47
  6. Step 6: Final answer
    x = 12,768.46

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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.