Home / 13,731.40-20,629.98-8,810.68

Finding the Fourth Proportional to 13,731.40, 20,629.98 and 8,810.68

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Solution

The fourth proportional to 13,731.40, 20,629.98 and 8,810.68 is: 13,237.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.40 : 20,629.98 = 8,810.68 : x
  2. Step 2: Convert to fraction form
    13,731.40/20,629.98 = 8,810.68/x
  3. Step 3: Cross multiply
    13,731.40x = 20,629.98 × 8,810.68
  4. Step 4: Simplify right side
    13,731.40x = 181,764,152.19
  5. Step 5: Solve for x
    x = 181,764,152.19/13,731.40
  6. Step 6: Final answer
    x = 13,237.12

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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.