Home / 13,349.93-18,423.77-7,685.37

Finding the Fourth Proportional to 13,349.93, 18,423.77 and 7,685.37

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Solution

The fourth proportional to 13,349.93, 18,423.77 and 7,685.37 is: 10,606.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.93 : 18,423.77 = 7,685.37 : x
  2. Step 2: Convert to fraction form
    13,349.93/18,423.77 = 7,685.37/x
  3. Step 3: Cross multiply
    13,349.93x = 18,423.77 × 7,685.37
  4. Step 4: Simplify right side
    13,349.93x = 141,593,450.82
  5. Step 5: Solve for x
    x = 141,593,450.82/13,349.93
  6. Step 6: Final answer
    x = 10,606.31

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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.