Home / 8,270.02-11,412.09-4,543.78

Finding the Fourth Proportional to 8,270.02, 11,412.09 and 4,543.78

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Solution

The fourth proportional to 8,270.02, 11,412.09 and 4,543.78 is: 6,270.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.02 : 11,412.09 = 4,543.78 : x
  2. Step 2: Convert to fraction form
    8,270.02/11,412.09 = 4,543.78/x
  3. Step 3: Cross multiply
    8,270.02x = 11,412.09 × 4,543.78
  4. Step 4: Simplify right side
    8,270.02x = 51,854,026.30
  5. Step 5: Solve for x
    x = 51,854,026.30/8,270.02
  6. Step 6: Final answer
    x = 6,270.12

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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.