Home / 14,421.96-19,902.60-8,134.34

Finding the Fourth Proportional to 14,421.96, 19,902.60 and 8,134.34

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Solution

The fourth proportional to 14,421.96, 19,902.60 and 8,134.34 is: 11,225.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.96 : 19,902.60 = 8,134.34 : x
  2. Step 2: Convert to fraction form
    14,421.96/19,902.60 = 8,134.34/x
  3. Step 3: Cross multiply
    14,421.96x = 19,902.60 × 8,134.34
  4. Step 4: Simplify right side
    14,421.96x = 161,894,415.77
  5. Step 5: Solve for x
    x = 161,894,415.77/14,421.96
  6. Step 6: Final answer
    x = 11,225.55

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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.