Home / 14,456.39-19,948.21-8,168.76

Finding the Fourth Proportional to 14,456.39, 19,948.21 and 8,168.76

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Solution

The fourth proportional to 14,456.39, 19,948.21 and 8,168.76 is: 11,271.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,456.39 : 19,948.21 = 8,168.76 : x
  2. Step 2: Convert to fraction form
    14,456.39/19,948.21 = 8,168.76/x
  3. Step 3: Cross multiply
    14,456.39x = 19,948.21 × 8,168.76
  4. Step 4: Simplify right side
    14,456.39x = 162,952,119.50
  5. Step 5: Solve for x
    x = 162,952,119.50/14,456.39
  6. Step 6: Final answer
    x = 11,271.98

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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.