Home / 14,721.12-20,308.32-8,749.44

Finding the Fourth Proportional to 14,721.12, 20,308.32 and 8,749.44

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Solution

The fourth proportional to 14,721.12, 20,308.32 and 8,749.44 is: 12,070.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.12 : 20,308.32 = 8,749.44 : x
  2. Step 2: Convert to fraction form
    14,721.12/20,308.32 = 8,749.44/x
  3. Step 3: Cross multiply
    14,721.12x = 20,308.32 × 8,749.44
  4. Step 4: Simplify right side
    14,721.12x = 177,686,427.34
  5. Step 5: Solve for x
    x = 177,686,427.34/14,721.12
  6. Step 6: Final answer
    x = 12,070.17

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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.