Home / 18,702.32-28,047.40-6,218.99

Finding the Fourth Proportional to 18,702.32, 28,047.40 and 6,218.99

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Solution

The fourth proportional to 18,702.32, 28,047.40 and 6,218.99 is: 9,326.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.32 : 28,047.40 = 6,218.99 : x
  2. Step 2: Convert to fraction form
    18,702.32/28,047.40 = 6,218.99/x
  3. Step 3: Cross multiply
    18,702.32x = 28,047.40 × 6,218.99
  4. Step 4: Simplify right side
    18,702.32x = 174,426,344.34
  5. Step 5: Solve for x
    x = 174,426,344.34/18,702.32
  6. Step 6: Final answer
    x = 9,326.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.