Home / 13,999.15-19,312.01-8,959.33

Finding the Fourth Proportional to 13,999.15, 19,312.01 and 8,959.33

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Solution

The fourth proportional to 13,999.15, 19,312.01 and 8,959.33 is: 12,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.15 : 19,312.01 = 8,959.33 : x
  2. Step 2: Convert to fraction form
    13,999.15/19,312.01 = 8,959.33/x
  3. Step 3: Cross multiply
    13,999.15x = 19,312.01 × 8,959.33
  4. Step 4: Simplify right side
    13,999.15x = 173,022,644.67
  5. Step 5: Solve for x
    x = 173,022,644.67/13,999.15
  6. Step 6: Final answer
    x = 12,359.51

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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.