Home / 13,317.08-18,377.55-7,348.75

Finding the Fourth Proportional to 13,317.08, 18,377.55 and 7,348.75

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Solution

The fourth proportional to 13,317.08, 18,377.55 and 7,348.75 is: 10,141.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.08 : 18,377.55 = 7,348.75 : x
  2. Step 2: Convert to fraction form
    13,317.08/18,377.55 = 7,348.75/x
  3. Step 3: Cross multiply
    13,317.08x = 18,377.55 × 7,348.75
  4. Step 4: Simplify right side
    13,317.08x = 135,051,928.67
  5. Step 5: Solve for x
    x = 135,051,928.67/13,317.08
  6. Step 6: Final answer
    x = 10,141.26

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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.