Home / 14,112.30-21,206.70-7,543.20

Finding the Fourth Proportional to 14,112.30, 21,206.70 and 7,543.20

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Solution

The fourth proportional to 14,112.30, 21,206.70 and 7,543.20 is: 11,335.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.30 : 21,206.70 = 7,543.20 : x
  2. Step 2: Convert to fraction form
    14,112.30/21,206.70 = 7,543.20/x
  3. Step 3: Cross multiply
    14,112.30x = 21,206.70 × 7,543.20
  4. Step 4: Simplify right side
    14,112.30x = 159,966,379.44
  5. Step 5: Solve for x
    x = 159,966,379.44/14,112.30
  6. Step 6: Final answer
    x = 11,335.25

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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.