Home / 12,424.80-18,637.20-4,633.20

Finding the Fourth Proportional to 12,424.80, 18,637.20 and 4,633.20

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Solution

The fourth proportional to 12,424.80, 18,637.20 and 4,633.20 is: 6,949.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.80 : 18,637.20 = 4,633.20 : x
  2. Step 2: Convert to fraction form
    12,424.80/18,637.20 = 4,633.20/x
  3. Step 3: Cross multiply
    12,424.80x = 18,637.20 × 4,633.20
  4. Step 4: Simplify right side
    12,424.80x = 86,349,875.04
  5. Step 5: Solve for x
    x = 86,349,875.04/12,424.80
  6. Step 6: Final answer
    x = 6,949.80

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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.