Home / 13,445.84-20,151.48-5,643.92

Finding the Fourth Proportional to 13,445.84, 20,151.48 and 5,643.92

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Solution

The fourth proportional to 13,445.84, 20,151.48 and 5,643.92 is: 8,458.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.84 : 20,151.48 = 5,643.92 : x
  2. Step 2: Convert to fraction form
    13,445.84/20,151.48 = 5,643.92/x
  3. Step 3: Cross multiply
    13,445.84x = 20,151.48 × 5,643.92
  4. Step 4: Simplify right side
    13,445.84x = 113,733,341.00
  5. Step 5: Solve for x
    x = 113,733,341.00/13,445.84
  6. Step 6: Final answer
    x = 8,458.63

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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.