Home / 15,002.48-20,702.39-8,288.06

Finding the Fourth Proportional to 15,002.48, 20,702.39 and 8,288.06

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Solution

The fourth proportional to 15,002.48, 20,702.39 and 8,288.06 is: 11,436.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.48 : 20,702.39 = 8,288.06 : x
  2. Step 2: Convert to fraction form
    15,002.48/20,702.39 = 8,288.06/x
  3. Step 3: Cross multiply
    15,002.48x = 20,702.39 × 8,288.06
  4. Step 4: Simplify right side
    15,002.48x = 171,582,505.51
  5. Step 5: Solve for x
    x = 171,582,505.51/15,002.48
  6. Step 6: Final answer
    x = 11,436.94

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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.