Home / 11,119.14-15,345.65-6,403.32

Finding the Fourth Proportional to 11,119.14, 15,345.65 and 6,403.32

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Solution

The fourth proportional to 11,119.14, 15,345.65 and 6,403.32 is: 8,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.14 : 15,345.65 = 6,403.32 : x
  2. Step 2: Convert to fraction form
    11,119.14/15,345.65 = 6,403.32/x
  3. Step 3: Cross multiply
    11,119.14x = 15,345.65 × 6,403.32
  4. Step 4: Simplify right side
    11,119.14x = 98,263,123.57
  5. Step 5: Solve for x
    x = 98,263,123.57/11,119.14
  6. Step 6: Final answer
    x = 8,837.30

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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.