Home / 14,438.87-21,655.21-8,430.94

Finding the Fourth Proportional to 14,438.87, 21,655.21 and 8,430.94

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Solution

The fourth proportional to 14,438.87, 21,655.21 and 8,430.94 is: 12,644.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,438.87 : 21,655.21 = 8,430.94 : x
  2. Step 2: Convert to fraction form
    14,438.87/21,655.21 = 8,430.94/x
  3. Step 3: Cross multiply
    14,438.87x = 21,655.21 × 8,430.94
  4. Step 4: Simplify right side
    14,438.87x = 182,573,776.20
  5. Step 5: Solve for x
    x = 182,573,776.20/14,438.87
  6. Step 6: Final answer
    x = 12,644.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.