Home / 10,421.16-15,632.96-4,183.35

Finding the Fourth Proportional to 10,421.16, 15,632.96 and 4,183.35

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Solution

The fourth proportional to 10,421.16, 15,632.96 and 4,183.35 is: 6,275.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.16 : 15,632.96 = 4,183.35 : x
  2. Step 2: Convert to fraction form
    10,421.16/15,632.96 = 4,183.35/x
  3. Step 3: Cross multiply
    10,421.16x = 15,632.96 × 4,183.35
  4. Step 4: Simplify right side
    10,421.16x = 65,398,143.22
  5. Step 5: Solve for x
    x = 65,398,143.22/10,421.16
  6. Step 6: Final answer
    x = 6,275.51

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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.