Home / 14,651.51-20,218.47-8,600.91

Finding the Fourth Proportional to 14,651.51, 20,218.47 and 8,600.91

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Solution

The fourth proportional to 14,651.51, 20,218.47 and 8,600.91 is: 11,868.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.51 : 20,218.47 = 8,600.91 : x
  2. Step 2: Convert to fraction form
    14,651.51/20,218.47 = 8,600.91/x
  3. Step 3: Cross multiply
    14,651.51x = 20,218.47 × 8,600.91
  4. Step 4: Simplify right side
    14,651.51x = 173,897,240.81
  5. Step 5: Solve for x
    x = 173,897,240.81/14,651.51
  6. Step 6: Final answer
    x = 11,868.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.