Home / 14,721.60-20,315.98-8,007.38

Finding the Fourth Proportional to 14,721.60, 20,315.98 and 8,007.38

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Solution

The fourth proportional to 14,721.60, 20,315.98 and 8,007.38 is: 11,050.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.60 : 20,315.98 = 8,007.38 : x
  2. Step 2: Convert to fraction form
    14,721.60/20,315.98 = 8,007.38/x
  3. Step 3: Cross multiply
    14,721.60x = 20,315.98 × 8,007.38
  4. Step 4: Simplify right side
    14,721.60x = 162,677,771.93
  5. Step 5: Solve for x
    x = 162,677,771.93/14,721.60
  6. Step 6: Final answer
    x = 11,050.28

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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.