Home / 8,421.77-12,632.61-4,036.79

Finding the Fourth Proportional to 8,421.77, 12,632.61 and 4,036.79

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Solution

The fourth proportional to 8,421.77, 12,632.61 and 4,036.79 is: 6,055.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.77 : 12,632.61 = 4,036.79 : x
  2. Step 2: Convert to fraction form
    8,421.77/12,632.61 = 4,036.79/x
  3. Step 3: Cross multiply
    8,421.77x = 12,632.61 × 4,036.79
  4. Step 4: Simplify right side
    8,421.77x = 50,995,193.72
  5. Step 5: Solve for x
    x = 50,995,193.72/8,421.77
  6. Step 6: Final answer
    x = 6,055.16

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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.