Home / 14,281.54-19,708.21-7,907.76

Finding the Fourth Proportional to 14,281.54, 19,708.21 and 7,907.76

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Solution

The fourth proportional to 14,281.54, 19,708.21 and 7,907.76 is: 10,912.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,281.54 : 19,708.21 = 7,907.76 : x
  2. Step 2: Convert to fraction form
    14,281.54/19,708.21 = 7,907.76/x
  3. Step 3: Cross multiply
    14,281.54x = 19,708.21 × 7,907.76
  4. Step 4: Simplify right side
    14,281.54x = 155,847,794.71
  5. Step 5: Solve for x
    x = 155,847,794.71/14,281.54
  6. Step 6: Final answer
    x = 10,912.53

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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.