Home / 12,659.98-18,973.45-9,161.77

Finding the Fourth Proportional to 12,659.98, 18,973.45 and 9,161.77

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Solution

The fourth proportional to 12,659.98, 18,973.45 and 9,161.77 is: 13,730.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.98 : 18,973.45 = 9,161.77 : x
  2. Step 2: Convert to fraction form
    12,659.98/18,973.45 = 9,161.77/x
  3. Step 3: Cross multiply
    12,659.98x = 18,973.45 × 9,161.77
  4. Step 4: Simplify right side
    12,659.98x = 173,830,385.01
  5. Step 5: Solve for x
    x = 173,830,385.01/12,659.98
  6. Step 6: Final answer
    x = 13,730.70

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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.