Home / 10,189.85-14,061.92-6,210.72

Finding the Fourth Proportional to 10,189.85, 14,061.92 and 6,210.72

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Solution

The fourth proportional to 10,189.85, 14,061.92 and 6,210.72 is: 8,570.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,189.85 : 14,061.92 = 6,210.72 : x
  2. Step 2: Convert to fraction form
    10,189.85/14,061.92 = 6,210.72/x
  3. Step 3: Cross multiply
    10,189.85x = 14,061.92 × 6,210.72
  4. Step 4: Simplify right side
    10,189.85x = 87,334,616.73
  5. Step 5: Solve for x
    x = 87,334,616.73/10,189.85
  6. Step 6: Final answer
    x = 8,570.75

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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.