Home / 14,947.09-20,604.45-12,289.89

Finding the Fourth Proportional to 14,947.09, 20,604.45 and 12,289.89

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Solution

The fourth proportional to 14,947.09, 20,604.45 and 12,289.89 is: 16,941.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,947.09 : 20,604.45 = 12,289.89 : x
  2. Step 2: Convert to fraction form
    14,947.09/20,604.45 = 12,289.89/x
  3. Step 3: Cross multiply
    14,947.09x = 20,604.45 × 12,289.89
  4. Step 4: Simplify right side
    14,947.09x = 253,226,300.66
  5. Step 5: Solve for x
    x = 253,226,300.66/14,947.09
  6. Step 6: Final answer
    x = 16,941.51

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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.