Home / 14,909.96-20,570.46-10,438.76

Finding the Fourth Proportional to 14,909.96, 20,570.46 and 10,438.76

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Solution

The fourth proportional to 14,909.96, 20,570.46 and 10,438.76 is: 14,401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,909.96 : 20,570.46 = 10,438.76 : x
  2. Step 2: Convert to fraction form
    14,909.96/20,570.46 = 10,438.76/x
  3. Step 3: Cross multiply
    14,909.96x = 20,570.46 × 10,438.76
  4. Step 4: Simplify right side
    14,909.96x = 214,730,095.03
  5. Step 5: Solve for x
    x = 214,730,095.03/14,909.96
  6. Step 6: Final answer
    x = 14,401.79

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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.