Home / 8,637.27-12,962.31-6,421.23

Finding the Fourth Proportional to 8,637.27, 12,962.31 and 6,421.23

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Solution

The fourth proportional to 8,637.27, 12,962.31 and 6,421.23 is: 9,636.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.27 : 12,962.31 = 6,421.23 : x
  2. Step 2: Convert to fraction form
    8,637.27/12,962.31 = 6,421.23/x
  3. Step 3: Cross multiply
    8,637.27x = 12,962.31 × 6,421.23
  4. Step 4: Simplify right side
    8,637.27x = 83,233,973.84
  5. Step 5: Solve for x
    x = 83,233,973.84/8,637.27
  6. Step 6: Final answer
    x = 9,636.61

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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.