Home / 11,873.05-16,386.50-7,398.20

Finding the Fourth Proportional to 11,873.05, 16,386.50 and 7,398.20

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Solution

The fourth proportional to 11,873.05, 16,386.50 and 7,398.20 is: 10,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.05 : 16,386.50 = 7,398.20 : x
  2. Step 2: Convert to fraction form
    11,873.05/16,386.50 = 7,398.20/x
  3. Step 3: Cross multiply
    11,873.05x = 16,386.50 × 7,398.20
  4. Step 4: Simplify right side
    11,873.05x = 121,230,663.76
  5. Step 5: Solve for x
    x = 121,230,663.76/11,873.05
  6. Step 6: Final answer
    x = 10,210.58

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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.