Home / 18,686.36-25,786-10,722.98

Finding the Fourth Proportional to 18,686.36, 25,786 and 10,722.98

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Solution

The fourth proportional to 18,686.36, 25,786 and 10,722.98 is: 14,797.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.36 : 25,786 = 10,722.98 : x
  2. Step 2: Convert to fraction form
    18,686.36/25,786 = 10,722.98/x
  3. Step 3: Cross multiply
    18,686.36x = 25,786 × 10,722.98
  4. Step 4: Simplify right side
    18,686.36x = 276,502,762.28
  5. Step 5: Solve for x
    x = 276,502,762.28/18,686.36
  6. Step 6: Final answer
    x = 14,797.04

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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.