Home / 13,718.64-20,575.82-4,357.43

Finding the Fourth Proportional to 13,718.64, 20,575.82 and 4,357.43

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Solution

The fourth proportional to 13,718.64, 20,575.82 and 4,357.43 is: 6,535.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.64 : 20,575.82 = 4,357.43 : x
  2. Step 2: Convert to fraction form
    13,718.64/20,575.82 = 4,357.43/x
  3. Step 3: Cross multiply
    13,718.64x = 20,575.82 × 4,357.43
  4. Step 4: Simplify right side
    13,718.64x = 89,657,741.34
  5. Step 5: Solve for x
    x = 89,657,741.34/13,718.64
  6. Step 6: Final answer
    x = 6,535.47

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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.