Home / 13,899.84-20,849.76-4,672.32

Finding the Fourth Proportional to 13,899.84, 20,849.76 and 4,672.32

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Solution

The fourth proportional to 13,899.84, 20,849.76 and 4,672.32 is: 7,008.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.84 : 20,849.76 = 4,672.32 : x
  2. Step 2: Convert to fraction form
    13,899.84/20,849.76 = 4,672.32/x
  3. Step 3: Cross multiply
    13,899.84x = 20,849.76 × 4,672.32
  4. Step 4: Simplify right side
    13,899.84x = 97,416,750.64
  5. Step 5: Solve for x
    x = 97,416,750.64/13,899.84
  6. Step 6: Final answer
    x = 7,008.48

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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.