Home / 18,702.48-25,809.56-10,319.28

Finding the Fourth Proportional to 18,702.48, 25,809.56 and 10,319.28

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Solution

The fourth proportional to 18,702.48, 25,809.56 and 10,319.28 is: 14,240.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.48 : 25,809.56 = 10,319.28 : x
  2. Step 2: Convert to fraction form
    18,702.48/25,809.56 = 10,319.28/x
  3. Step 3: Cross multiply
    18,702.48x = 25,809.56 × 10,319.28
  4. Step 4: Simplify right side
    18,702.48x = 266,336,076.32
  5. Step 5: Solve for x
    x = 266,336,076.32/18,702.48
  6. Step 6: Final answer
    x = 14,240.68

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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.