Home / 14,145.28-19,518.32-8,175.80

Finding the Fourth Proportional to 14,145.28, 19,518.32 and 8,175.80

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Solution

The fourth proportional to 14,145.28, 19,518.32 and 8,175.80 is: 11,281.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.28 : 19,518.32 = 8,175.80 : x
  2. Step 2: Convert to fraction form
    14,145.28/19,518.32 = 8,175.80/x
  3. Step 3: Cross multiply
    14,145.28x = 19,518.32 × 8,175.80
  4. Step 4: Simplify right side
    14,145.28x = 159,577,742.19
  5. Step 5: Solve for x
    x = 159,577,742.19/14,145.28
  6. Step 6: Final answer
    x = 11,281.34

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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.