Home / 15,071.04-20,797.80-8,356.68

Finding the Fourth Proportional to 15,071.04, 20,797.80 and 8,356.68

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Solution

The fourth proportional to 15,071.04, 20,797.80 and 8,356.68 is: 11,532.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.04 : 20,797.80 = 8,356.68 : x
  2. Step 2: Convert to fraction form
    15,071.04/20,797.80 = 8,356.68/x
  3. Step 3: Cross multiply
    15,071.04x = 20,797.80 × 8,356.68
  4. Step 4: Simplify right side
    15,071.04x = 173,800,559.30
  5. Step 5: Solve for x
    x = 173,800,559.30/15,071.04
  6. Step 6: Final answer
    x = 11,532.09

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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.