Home / 14,458.40-19,950.12-8,170.64

Finding the Fourth Proportional to 14,458.40, 19,950.12 and 8,170.64

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Solution

The fourth proportional to 14,458.40, 19,950.12 and 8,170.64 is: 11,274.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,458.40 : 19,950.12 = 8,170.64 : x
  2. Step 2: Convert to fraction form
    14,458.40/19,950.12 = 8,170.64/x
  3. Step 3: Cross multiply
    14,458.40x = 19,950.12 × 8,170.64
  4. Step 4: Simplify right side
    14,458.40x = 163,005,248.48
  5. Step 5: Solve for x
    x = 163,005,248.48/14,458.40
  6. Step 6: Final answer
    x = 11,274.09

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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.