Home / 13,999.91-19,322.52-8,031.65

Finding the Fourth Proportional to 13,999.91, 19,322.52 and 8,031.65

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Solution

The fourth proportional to 13,999.91, 19,322.52 and 8,031.65 is: 11,085.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.91 : 19,322.52 = 8,031.65 : x
  2. Step 2: Convert to fraction form
    13,999.91/19,322.52 = 8,031.65/x
  3. Step 3: Cross multiply
    13,999.91x = 19,322.52 × 8,031.65
  4. Step 4: Simplify right side
    13,999.91x = 155,191,717.76
  5. Step 5: Solve for x
    x = 155,191,717.76/13,999.91
  6. Step 6: Final answer
    x = 11,085.19

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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.