Home / 14,776.31-20,391.53-8,403.23

Finding the Fourth Proportional to 14,776.31, 20,391.53 and 8,403.23

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Solution

The fourth proportional to 14,776.31, 20,391.53 and 8,403.23 is: 11,596.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,776.31 : 20,391.53 = 8,403.23 : x
  2. Step 2: Convert to fraction form
    14,776.31/20,391.53 = 8,403.23/x
  3. Step 3: Cross multiply
    14,776.31x = 20,391.53 × 8,403.23
  4. Step 4: Simplify right side
    14,776.31x = 171,354,572.67
  5. Step 5: Solve for x
    x = 171,354,572.67/14,776.31
  6. Step 6: Final answer
    x = 11,596.58

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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.