Home / 14,595.40-20,143.74-8,308.36

Finding the Fourth Proportional to 14,595.40, 20,143.74 and 8,308.36

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Solution

The fourth proportional to 14,595.40, 20,143.74 and 8,308.36 is: 11,466.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,595.40 : 20,143.74 = 8,308.36 : x
  2. Step 2: Convert to fraction form
    14,595.40/20,143.74 = 8,308.36/x
  3. Step 3: Cross multiply
    14,595.40x = 20,143.74 × 8,308.36
  4. Step 4: Simplify right side
    14,595.40x = 167,361,443.67
  5. Step 5: Solve for x
    x = 167,361,443.67/14,595.40
  6. Step 6: Final answer
    x = 11,466.73

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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.