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Finding the Fourth Proportional to 10,561.01, 15,826.70 and 8,210.25

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Solution

The fourth proportional to 10,561.01, 15,826.70 and 8,210.25 is: 12,303.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.01 : 15,826.70 = 8,210.25 : x
  2. Step 2: Convert to fraction form
    10,561.01/15,826.70 = 8,210.25/x
  3. Step 3: Cross multiply
    10,561.01x = 15,826.70 × 8,210.25
  4. Step 4: Simplify right side
    10,561.01x = 129,941,184.20
  5. Step 5: Solve for x
    x = 129,941,184.20/10,561.01
  6. Step 6: Final answer
    x = 12,303.87

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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.