Home / 10,561.51-15,827.45-8,210.75

Finding the Fourth Proportional to 10,561.51, 15,827.45 and 8,210.75

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Solution

The fourth proportional to 10,561.51, 15,827.45 and 8,210.75 is: 12,304.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.51 : 15,827.45 = 8,210.75 : x
  2. Step 2: Convert to fraction form
    10,561.51/15,827.45 = 8,210.75/x
  3. Step 3: Cross multiply
    10,561.51x = 15,827.45 × 8,210.75
  4. Step 4: Simplify right side
    10,561.51x = 129,955,255.61
  5. Step 5: Solve for x
    x = 129,955,255.61/10,561.51
  6. Step 6: Final answer
    x = 12,304.62

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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.