Home / 10,521.66-14,512.68-6,269.45

Finding the Fourth Proportional to 10,521.66, 14,512.68 and 6,269.45

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Solution

The fourth proportional to 10,521.66, 14,512.68 and 6,269.45 is: 8,647.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.66 : 14,512.68 = 6,269.45 : x
  2. Step 2: Convert to fraction form
    10,521.66/14,512.68 = 6,269.45/x
  3. Step 3: Cross multiply
    10,521.66x = 14,512.68 × 6,269.45
  4. Step 4: Simplify right side
    10,521.66x = 90,986,449.06
  5. Step 5: Solve for x
    x = 90,986,449.06/10,521.66
  6. Step 6: Final answer
    x = 8,647.54

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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.