Home / 14,606.40-20,158.92-8,319.36

Finding the Fourth Proportional to 14,606.40, 20,158.92 and 8,319.36

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Solution

The fourth proportional to 14,606.40, 20,158.92 and 8,319.36 is: 11,481.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,606.40 : 20,158.92 = 8,319.36 : x
  2. Step 2: Convert to fraction form
    14,606.40/20,158.92 = 8,319.36/x
  3. Step 3: Cross multiply
    14,606.40x = 20,158.92 × 8,319.36
  4. Step 4: Simplify right side
    14,606.40x = 167,709,312.69
  5. Step 5: Solve for x
    x = 167,709,312.69/14,606.40
  6. Step 6: Final answer
    x = 11,481.91

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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.