Home / 15,129.08-20,887.98-14,083.64

Finding the Fourth Proportional to 15,129.08, 20,887.98 and 14,083.64

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Solution

The fourth proportional to 15,129.08, 20,887.98 and 14,083.64 is: 19,444.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.08 : 20,887.98 = 14,083.64 : x
  2. Step 2: Convert to fraction form
    15,129.08/20,887.98 = 14,083.64/x
  3. Step 3: Cross multiply
    15,129.08x = 20,887.98 × 14,083.64
  4. Step 4: Simplify right side
    15,129.08x = 294,178,790.65
  5. Step 5: Solve for x
    x = 294,178,790.65/15,129.08
  6. Step 6: Final answer
    x = 19,444.59

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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.