Home / 13,340.54-20,004.65-7,795.58

Finding the Fourth Proportional to 13,340.54, 20,004.65 and 7,795.58

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Solution

The fourth proportional to 13,340.54, 20,004.65 and 7,795.58 is: 11,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.54 : 20,004.65 = 7,795.58 : x
  2. Step 2: Convert to fraction form
    13,340.54/20,004.65 = 7,795.58/x
  3. Step 3: Cross multiply
    13,340.54x = 20,004.65 × 7,795.58
  4. Step 4: Simplify right side
    13,340.54x = 155,947,710.45
  5. Step 5: Solve for x
    x = 155,947,710.45/13,340.54
  6. Step 6: Final answer
    x = 11,689.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.