Home / 13,378.90-18,462.63-7,410.55

Finding the Fourth Proportional to 13,378.90, 18,462.63 and 7,410.55

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Solution

The fourth proportional to 13,378.90, 18,462.63 and 7,410.55 is: 10,226.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.90 : 18,462.63 = 7,410.55 : x
  2. Step 2: Convert to fraction form
    13,378.90/18,462.63 = 7,410.55/x
  3. Step 3: Cross multiply
    13,378.90x = 18,462.63 × 7,410.55
  4. Step 4: Simplify right side
    13,378.90x = 136,818,150.43
  5. Step 5: Solve for x
    x = 136,818,150.43/13,378.90
  6. Step 6: Final answer
    x = 10,226.42

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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.