Home / 13,435.68-20,154.51-3,574.92

Finding the Fourth Proportional to 13,435.68, 20,154.51 and 3,574.92

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Solution

The fourth proportional to 13,435.68, 20,154.51 and 3,574.92 is: 5,362.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.68 : 20,154.51 = 3,574.92 : x
  2. Step 2: Convert to fraction form
    13,435.68/20,154.51 = 3,574.92/x
  3. Step 3: Cross multiply
    13,435.68x = 20,154.51 × 3,574.92
  4. Step 4: Simplify right side
    13,435.68x = 72,050,760.89
  5. Step 5: Solve for x
    x = 72,050,760.89/13,435.68
  6. Step 6: Final answer
    x = 5,362.64

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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.