Home / 15,303.07-21,120.44-8,498.65

Finding the Fourth Proportional to 15,303.07, 21,120.44 and 8,498.65

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Solution

The fourth proportional to 15,303.07, 21,120.44 and 8,498.65 is: 11,729.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,303.07 : 21,120.44 = 8,498.65 : x
  2. Step 2: Convert to fraction form
    15,303.07/21,120.44 = 8,498.65/x
  3. Step 3: Cross multiply
    15,303.07x = 21,120.44 × 8,498.65
  4. Step 4: Simplify right side
    15,303.07x = 179,495,227.41
  5. Step 5: Solve for x
    x = 179,495,227.41/15,303.07
  6. Step 6: Final answer
    x = 11,729.36

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Double scale
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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.