Home / 13,349.76-18,423.84-7,762.56

Finding the Fourth Proportional to 13,349.76, 18,423.84 and 7,762.56

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Solution

The fourth proportional to 13,349.76, 18,423.84 and 7,762.56 is: 10,713.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.76 : 18,423.84 = 7,762.56 : x
  2. Step 2: Convert to fraction form
    13,349.76/18,423.84 = 7,762.56/x
  3. Step 3: Cross multiply
    13,349.76x = 18,423.84 × 7,762.56
  4. Step 4: Simplify right side
    13,349.76x = 143,016,163.43
  5. Step 5: Solve for x
    x = 143,016,163.43/13,349.76
  6. Step 6: Final answer
    x = 10,713.01

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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.