Home / 12,139.36-16,752.19-6,834.07

Finding the Fourth Proportional to 12,139.36, 16,752.19 and 6,834.07

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Solution

The fourth proportional to 12,139.36, 16,752.19 and 6,834.07 is: 9,430.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139.36 : 16,752.19 = 6,834.07 : x
  2. Step 2: Convert to fraction form
    12,139.36/16,752.19 = 6,834.07/x
  3. Step 3: Cross multiply
    12,139.36x = 16,752.19 × 6,834.07
  4. Step 4: Simplify right side
    12,139.36x = 114,485,639.11
  5. Step 5: Solve for x
    x = 114,485,639.11/12,139.36
  6. Step 6: Final answer
    x = 9,430.95

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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.