Home / 12,328.08-17,035.29-8,785.14

Finding the Fourth Proportional to 12,328.08, 17,035.29 and 8,785.14

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Solution

The fourth proportional to 12,328.08, 17,035.29 and 8,785.14 is: 12,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.08 : 17,035.29 = 8,785.14 : x
  2. Step 2: Convert to fraction form
    12,328.08/17,035.29 = 8,785.14/x
  3. Step 3: Cross multiply
    12,328.08x = 17,035.29 × 8,785.14
  4. Step 4: Simplify right side
    12,328.08x = 149,657,407.59
  5. Step 5: Solve for x
    x = 149,657,407.59/12,328.08
  6. Step 6: Final answer
    x = 12,139.56

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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.