Home / 13,409.59-18,504.35-7,440.88

Finding the Fourth Proportional to 13,409.59, 18,504.35 and 7,440.88

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Solution

The fourth proportional to 13,409.59, 18,504.35 and 7,440.88 is: 10,267.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.59 : 18,504.35 = 7,440.88 : x
  2. Step 2: Convert to fraction form
    13,409.59/18,504.35 = 7,440.88/x
  3. Step 3: Cross multiply
    13,409.59x = 18,504.35 × 7,440.88
  4. Step 4: Simplify right side
    13,409.59x = 137,688,610.62
  5. Step 5: Solve for x
    x = 137,688,610.62/13,409.59
  6. Step 6: Final answer
    x = 10,267.92

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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.