Home / 13,356.05-20,036.59-5,565.65

Finding the Fourth Proportional to 13,356.05, 20,036.59 and 5,565.65

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Solution

The fourth proportional to 13,356.05, 20,036.59 and 5,565.65 is: 8,349.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.05 : 20,036.59 = 5,565.65 : x
  2. Step 2: Convert to fraction form
    13,356.05/20,036.59 = 5,565.65/x
  3. Step 3: Cross multiply
    13,356.05x = 20,036.59 × 5,565.65
  4. Step 4: Simplify right side
    13,356.05x = 111,516,533.04
  5. Step 5: Solve for x
    x = 111,516,533.04/13,356.05
  6. Step 6: Final answer
    x = 8,349.52

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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.