Home / 15,297.46-21,117.91-10,259.84

Finding the Fourth Proportional to 15,297.46, 21,117.91 and 10,259.84

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Solution

The fourth proportional to 15,297.46, 21,117.91 and 10,259.84 is: 14,163.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.46 : 21,117.91 = 10,259.84 : x
  2. Step 2: Convert to fraction form
    15,297.46/21,117.91 = 10,259.84/x
  3. Step 3: Cross multiply
    15,297.46x = 21,117.91 × 10,259.84
  4. Step 4: Simplify right side
    15,297.46x = 216,666,377.73
  5. Step 5: Solve for x
    x = 216,666,377.73/15,297.46
  6. Step 6: Final answer
    x = 14,163.55

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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.