Home / 13,637.36-20,456.04-4,278.19

Finding the Fourth Proportional to 13,637.36, 20,456.04 and 4,278.19

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Solution

The fourth proportional to 13,637.36, 20,456.04 and 4,278.19 is: 6,417.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.36 : 20,456.04 = 4,278.19 : x
  2. Step 2: Convert to fraction form
    13,637.36/20,456.04 = 4,278.19/x
  3. Step 3: Cross multiply
    13,637.36x = 20,456.04 × 4,278.19
  4. Step 4: Simplify right side
    13,637.36x = 87,514,835.29
  5. Step 5: Solve for x
    x = 87,514,835.29/13,637.36
  6. Step 6: Final answer
    x = 6,417.29

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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.