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Finding the Fourth Proportional to 15,630.01, 21,572.21 and 8,826.10

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Solution

The fourth proportional to 15,630.01, 21,572.21 and 8,826.10 is: 12,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.01 : 21,572.21 = 8,826.10 : x
  2. Step 2: Convert to fraction form
    15,630.01/21,572.21 = 8,826.10/x
  3. Step 3: Cross multiply
    15,630.01x = 21,572.21 × 8,826.10
  4. Step 4: Simplify right side
    15,630.01x = 190,398,482.68
  5. Step 5: Solve for x
    x = 190,398,482.68/15,630.01
  6. Step 6: Final answer
    x = 12,181.60

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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.