Home / 13,237.20-18,262.48-8,702.32

Finding the Fourth Proportional to 13,237.20, 18,262.48 and 8,702.32

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Solution

The fourth proportional to 13,237.20, 18,262.48 and 8,702.32 is: 12,006.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.20 : 18,262.48 = 8,702.32 : x
  2. Step 2: Convert to fraction form
    13,237.20/18,262.48 = 8,702.32/x
  3. Step 3: Cross multiply
    13,237.20x = 18,262.48 × 8,702.32
  4. Step 4: Simplify right side
    13,237.20x = 158,925,944.95
  5. Step 5: Solve for x
    x = 158,925,944.95/13,237.20
  6. Step 6: Final answer
    x = 12,006.01

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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.