Home / 8,421.94-12,637.77-4,674.07

Finding the Fourth Proportional to 8,421.94, 12,637.77 and 4,674.07

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Solution

The fourth proportional to 8,421.94, 12,637.77 and 4,674.07 is: 7,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.94 : 12,637.77 = 4,674.07 : x
  2. Step 2: Convert to fraction form
    8,421.94/12,637.77 = 4,674.07/x
  3. Step 3: Cross multiply
    8,421.94x = 12,637.77 × 4,674.07
  4. Step 4: Simplify right side
    8,421.94x = 59,069,821.62
  5. Step 5: Solve for x
    x = 59,069,821.62/8,421.94
  6. Step 6: Final answer
    x = 7,013.80

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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.