Home / 14,736.81-20,337.71-8,451.21

Finding the Fourth Proportional to 14,736.81, 20,337.71 and 8,451.21

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Solution

The fourth proportional to 14,736.81, 20,337.71 and 8,451.21 is: 11,663.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,736.81 : 20,337.71 = 8,451.21 : x
  2. Step 2: Convert to fraction form
    14,736.81/20,337.71 = 8,451.21/x
  3. Step 3: Cross multiply
    14,736.81x = 20,337.71 × 8,451.21
  4. Step 4: Simplify right side
    14,736.81x = 171,878,215.87
  5. Step 5: Solve for x
    x = 171,878,215.87/14,736.81
  6. Step 6: Final answer
    x = 11,663.19

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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.