Home / 15,103.32-20,834.40-9,136.92

Finding the Fourth Proportional to 15,103.32, 20,834.40 and 9,136.92

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Solution

The fourth proportional to 15,103.32, 20,834.40 and 9,136.92 is: 12,604.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,103.32 : 20,834.40 = 9,136.92 : x
  2. Step 2: Convert to fraction form
    15,103.32/20,834.40 = 9,136.92/x
  3. Step 3: Cross multiply
    15,103.32x = 20,834.40 × 9,136.92
  4. Step 4: Simplify right side
    15,103.32x = 190,362,246.05
  5. Step 5: Solve for x
    x = 190,362,246.05/15,103.32
  6. Step 6: Final answer
    x = 12,604.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.