Home / 15,742.52-21,706.67-11,756.91

Finding the Fourth Proportional to 15,742.52, 21,706.67 and 11,756.91

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Solution

The fourth proportional to 15,742.52, 21,706.67 and 11,756.91 is: 16,211.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,742.52 : 21,706.67 = 11,756.91 : x
  2. Step 2: Convert to fraction form
    15,742.52/21,706.67 = 11,756.91/x
  3. Step 3: Cross multiply
    15,742.52x = 21,706.67 × 11,756.91
  4. Step 4: Simplify right side
    15,742.52x = 255,203,306.81
  5. Step 5: Solve for x
    x = 255,203,306.81/15,742.52
  6. Step 6: Final answer
    x = 16,211.09

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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.