Home / 13,485.59-20,225.14-6,908.39

Finding the Fourth Proportional to 13,485.59, 20,225.14 and 6,908.39

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Solution

The fourth proportional to 13,485.59, 20,225.14 and 6,908.39 is: 10,360.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.59 : 20,225.14 = 6,908.39 : x
  2. Step 2: Convert to fraction form
    13,485.59/20,225.14 = 6,908.39/x
  3. Step 3: Cross multiply
    13,485.59x = 20,225.14 × 6,908.39
  4. Step 4: Simplify right side
    13,485.59x = 139,723,154.92
  5. Step 5: Solve for x
    x = 139,723,154.92/13,485.59
  6. Step 6: Final answer
    x = 10,360.92

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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.