Home / 13,913.74-20,870.58-3,525.46

Finding the Fourth Proportional to 13,913.74, 20,870.58 and 3,525.46

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Solution

The fourth proportional to 13,913.74, 20,870.58 and 3,525.46 is: 5,288.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.74 : 20,870.58 = 3,525.46 : x
  2. Step 2: Convert to fraction form
    13,913.74/20,870.58 = 3,525.46/x
  3. Step 3: Cross multiply
    13,913.74x = 20,870.58 × 3,525.46
  4. Step 4: Simplify right side
    13,913.74x = 73,578,394.97
  5. Step 5: Solve for x
    x = 73,578,394.97/13,913.74
  6. Step 6: Final answer
    x = 5,288.18

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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.