Home / 13,722.42-18,937.02-7,434.80

Finding the Fourth Proportional to 13,722.42, 18,937.02 and 7,434.80

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Solution

The fourth proportional to 13,722.42, 18,937.02 and 7,434.80 is: 10,260.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.42 : 18,937.02 = 7,434.80 : x
  2. Step 2: Convert to fraction form
    13,722.42/18,937.02 = 7,434.80/x
  3. Step 3: Cross multiply
    13,722.42x = 18,937.02 × 7,434.80
  4. Step 4: Simplify right side
    13,722.42x = 140,792,960.51
  5. Step 5: Solve for x
    x = 140,792,960.51/13,722.42
  6. Step 6: Final answer
    x = 10,260.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.