Home / 14,475.40-19,977.12-8,102.63

Finding the Fourth Proportional to 14,475.40, 19,977.12 and 8,102.63

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Solution

The fourth proportional to 14,475.40, 19,977.12 and 8,102.63 is: 11,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,475.40 : 19,977.12 = 8,102.63 : x
  2. Step 2: Convert to fraction form
    14,475.40/19,977.12 = 8,102.63/x
  3. Step 3: Cross multiply
    14,475.40x = 19,977.12 × 8,102.63
  4. Step 4: Simplify right side
    14,475.40x = 161,867,211.83
  5. Step 5: Solve for x
    x = 161,867,211.83/14,475.40
  6. Step 6: Final answer
    x = 11,182.23

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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.