Home / 13,623.36-20,421.27-5,298.18

Finding the Fourth Proportional to 13,623.36, 20,421.27 and 5,298.18

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Solution

The fourth proportional to 13,623.36, 20,421.27 and 5,298.18 is: 7,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.36 : 20,421.27 = 5,298.18 : x
  2. Step 2: Convert to fraction form
    13,623.36/20,421.27 = 5,298.18/x
  3. Step 3: Cross multiply
    13,623.36x = 20,421.27 × 5,298.18
  4. Step 4: Simplify right side
    13,623.36x = 108,195,564.29
  5. Step 5: Solve for x
    x = 108,195,564.29/13,623.36
  6. Step 6: Final answer
    x = 7,941.91

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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.