Home / 13,196.53-18,210.45-7,228.32

Finding the Fourth Proportional to 13,196.53, 18,210.45 and 7,228.32

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Solution

The fourth proportional to 13,196.53, 18,210.45 and 7,228.32 is: 9,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,196.53 : 18,210.45 = 7,228.32 : x
  2. Step 2: Convert to fraction form
    13,196.53/18,210.45 = 7,228.32/x
  3. Step 3: Cross multiply
    13,196.53x = 18,210.45 × 7,228.32
  4. Step 4: Simplify right side
    13,196.53x = 131,630,959.94
  5. Step 5: Solve for x
    x = 131,630,959.94/13,196.53
  6. Step 6: Final answer
    x = 9,974.66

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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.