Home / 12,530.36-18,807.70-6,691.08

Finding the Fourth Proportional to 12,530.36, 18,807.70 and 6,691.08

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Solution

The fourth proportional to 12,530.36, 18,807.70 and 6,691.08 is: 10,043.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.36 : 18,807.70 = 6,691.08 : x
  2. Step 2: Convert to fraction form
    12,530.36/18,807.70 = 6,691.08/x
  3. Step 3: Cross multiply
    12,530.36x = 18,807.70 × 6,691.08
  4. Step 4: Simplify right side
    12,530.36x = 125,843,825.32
  5. Step 5: Solve for x
    x = 125,843,825.32/12,530.36
  6. Step 6: Final answer
    x = 10,043.11

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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.