Home / 14,007.86-21,008.85-4,147.22

Finding the Fourth Proportional to 14,007.86, 21,008.85 and 4,147.22

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Solution

The fourth proportional to 14,007.86, 21,008.85 and 4,147.22 is: 6,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.86 : 21,008.85 = 4,147.22 : x
  2. Step 2: Convert to fraction form
    14,007.86/21,008.85 = 4,147.22/x
  3. Step 3: Cross multiply
    14,007.86x = 21,008.85 × 4,147.22
  4. Step 4: Simplify right side
    14,007.86x = 87,128,322.90
  5. Step 5: Solve for x
    x = 87,128,322.90/14,007.86
  6. Step 6: Final answer
    x = 6,219.96

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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.