Home / 15,722.86-21,706.51-10,424.84

Finding the Fourth Proportional to 15,722.86, 21,706.51 and 10,424.84

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Solution

The fourth proportional to 15,722.86, 21,706.51 and 10,424.84 is: 14,392.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,722.86 : 21,706.51 = 10,424.84 : x
  2. Step 2: Convert to fraction form
    15,722.86/21,706.51 = 10,424.84/x
  3. Step 3: Cross multiply
    15,722.86x = 21,706.51 × 10,424.84
  4. Step 4: Simplify right side
    15,722.86x = 226,286,841.58
  5. Step 5: Solve for x
    x = 226,286,841.58/15,722.86
  6. Step 6: Final answer
    x = 14,392.22

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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.