Home / 12,637.12-18,957.91-4,315.19

Finding the Fourth Proportional to 12,637.12, 18,957.91 and 4,315.19

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Solution

The fourth proportional to 12,637.12, 18,957.91 and 4,315.19 is: 6,473.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.12 : 18,957.91 = 4,315.19 : x
  2. Step 2: Convert to fraction form
    12,637.12/18,957.91 = 4,315.19/x
  3. Step 3: Cross multiply
    12,637.12x = 18,957.91 × 4,315.19
  4. Step 4: Simplify right side
    12,637.12x = 81,806,918.89
  5. Step 5: Solve for x
    x = 81,806,918.89/12,637.12
  6. Step 6: Final answer
    x = 6,473.54

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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.