Home / 13,914.02-20,870.76-3,525.50

Finding the Fourth Proportional to 13,914.02, 20,870.76 and 3,525.50

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Solution

The fourth proportional to 13,914.02, 20,870.76 and 3,525.50 is: 5,288.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.02 : 20,870.76 = 3,525.50 : x
  2. Step 2: Convert to fraction form
    13,914.02/20,870.76 = 3,525.50/x
  3. Step 3: Cross multiply
    13,914.02x = 20,870.76 × 3,525.50
  4. Step 4: Simplify right side
    13,914.02x = 73,579,864.38
  5. Step 5: Solve for x
    x = 73,579,864.38/13,914.02
  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.