Home / 13,762.18-18,991.92-7,474.60

Finding the Fourth Proportional to 13,762.18, 18,991.92 and 7,474.60

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Solution

The fourth proportional to 13,762.18, 18,991.92 and 7,474.60 is: 10,315.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762.18 : 18,991.92 = 7,474.60 : x
  2. Step 2: Convert to fraction form
    13,762.18/18,991.92 = 7,474.60/x
  3. Step 3: Cross multiply
    13,762.18x = 18,991.92 × 7,474.60
  4. Step 4: Simplify right side
    13,762.18x = 141,957,005.23
  5. Step 5: Solve for x
    x = 141,957,005.23/13,762.18
  6. Step 6: Final answer
    x = 10,315.01

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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.