Home / 15,116.52-20,857.59-8,826.06

Finding the Fourth Proportional to 15,116.52, 20,857.59 and 8,826.06

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Solution

The fourth proportional to 15,116.52, 20,857.59 and 8,826.06 is: 12,178.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,116.52 : 20,857.59 = 8,826.06 : x
  2. Step 2: Convert to fraction form
    15,116.52/20,857.59 = 8,826.06/x
  3. Step 3: Cross multiply
    15,116.52x = 20,857.59 × 8,826.06
  4. Step 4: Simplify right side
    15,116.52x = 184,090,340.80
  5. Step 5: Solve for x
    x = 184,090,340.80/15,116.52
  6. Step 6: Final answer
    x = 12,178.09

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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.