Home / 13,156.08-19,702.80-7,224.18

Finding the Fourth Proportional to 13,156.08, 19,702.80 and 7,224.18

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Solution

The fourth proportional to 13,156.08, 19,702.80 and 7,224.18 is: 10,819.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.08 : 19,702.80 = 7,224.18 : x
  2. Step 2: Convert to fraction form
    13,156.08/19,702.80 = 7,224.18/x
  3. Step 3: Cross multiply
    13,156.08x = 19,702.80 × 7,224.18
  4. Step 4: Simplify right side
    13,156.08x = 142,336,573.70
  5. Step 5: Solve for x
    x = 142,336,573.70/13,156.08
  6. Step 6: Final answer
    x = 10,819.07

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1.5x scale

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.