Home / 13,317.54-18,377.88-7,349.21

Finding the Fourth Proportional to 13,317.54, 18,377.88 and 7,349.21

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Solution

The fourth proportional to 13,317.54, 18,377.88 and 7,349.21 is: 10,141.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.54 : 18,377.88 = 7,349.21 : x
  2. Step 2: Convert to fraction form
    13,317.54/18,377.88 = 7,349.21/x
  3. Step 3: Cross multiply
    13,317.54x = 18,377.88 × 7,349.21
  4. Step 4: Simplify right side
    13,317.54x = 135,062,807.59
  5. Step 5: Solve for x
    x = 135,062,807.59/13,317.54
  6. Step 6: Final answer
    x = 10,141.72

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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.