Home / 12,742.16-19,118.88-4,951.56

Finding the Fourth Proportional to 12,742.16, 19,118.88 and 4,951.56

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Solution

The fourth proportional to 12,742.16, 19,118.88 and 4,951.56 is: 7,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.16 : 19,118.88 = 4,951.56 : x
  2. Step 2: Convert to fraction form
    12,742.16/19,118.88 = 4,951.56/x
  3. Step 3: Cross multiply
    12,742.16x = 19,118.88 × 4,951.56
  4. Step 4: Simplify right side
    12,742.16x = 94,668,281.45
  5. Step 5: Solve for x
    x = 94,668,281.45/12,742.16
  6. Step 6: Final answer
    x = 7,429.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.