Home / 13,691.09-20,523.47-5,368.34

Finding the Fourth Proportional to 13,691.09, 20,523.47 and 5,368.34

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Solution

The fourth proportional to 13,691.09, 20,523.47 and 5,368.34 is: 8,047.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691.09 : 20,523.47 = 5,368.34 : x
  2. Step 2: Convert to fraction form
    13,691.09/20,523.47 = 5,368.34/x
  3. Step 3: Cross multiply
    13,691.09x = 20,523.47 × 5,368.34
  4. Step 4: Simplify right side
    13,691.09x = 110,176,835.48
  5. Step 5: Solve for x
    x = 110,176,835.48/13,691.09
  6. Step 6: Final answer
    x = 8,047.34

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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.