Home / 13,317.93-18,378.54-7,349.58

Finding the Fourth Proportional to 13,317.93, 18,378.54 and 7,349.58

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Solution

The fourth proportional to 13,317.93, 18,378.54 and 7,349.58 is: 10,142.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.93 : 18,378.54 = 7,349.58 : x
  2. Step 2: Convert to fraction form
    13,317.93/18,378.54 = 7,349.58/x
  3. Step 3: Cross multiply
    13,317.93x = 18,378.54 × 7,349.58
  4. Step 4: Simplify right side
    13,317.93x = 135,074,550.01
  5. Step 5: Solve for x
    x = 135,074,550.01/13,317.93
  6. Step 6: Final answer
    x = 10,142.31

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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.