Home / 12,139.29-16,752.20-6,835.81

Finding the Fourth Proportional to 12,139.29, 16,752.20 and 6,835.81

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Solution

The fourth proportional to 12,139.29, 16,752.20 and 6,835.81 is: 9,433.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139.29 : 16,752.20 = 6,835.81 : x
  2. Step 2: Convert to fraction form
    12,139.29/16,752.20 = 6,835.81/x
  3. Step 3: Cross multiply
    12,139.29x = 16,752.20 × 6,835.81
  4. Step 4: Simplify right side
    12,139.29x = 114,514,822.10
  5. Step 5: Solve for x
    x = 114,514,822.10/12,139.29
  6. Step 6: Final answer
    x = 9,433.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.