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Finding the Fourth Proportional to 8,848.74, 12,210.48 and 5,491.20

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Solution

The fourth proportional to 8,848.74, 12,210.48 and 5,491.20 is: 7,577.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,848.74 : 12,210.48 = 5,491.20 : x
  2. Step 2: Convert to fraction form
    8,848.74/12,210.48 = 5,491.20/x
  3. Step 3: Cross multiply
    8,848.74x = 12,210.48 × 5,491.20
  4. Step 4: Simplify right side
    8,848.74x = 67,050,187.78
  5. Step 5: Solve for x
    x = 67,050,187.78/8,848.74
  6. Step 6: Final answer
    x = 7,577.37

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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.