Home / 14,147.04-21,211.28-7,907.71

Finding the Fourth Proportional to 14,147.04, 21,211.28 and 7,907.71

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Solution

The fourth proportional to 14,147.04, 21,211.28 and 7,907.71 is: 11,856.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.04 : 21,211.28 = 7,907.71 : x
  2. Step 2: Convert to fraction form
    14,147.04/21,211.28 = 7,907.71/x
  3. Step 3: Cross multiply
    14,147.04x = 21,211.28 × 7,907.71
  4. Step 4: Simplify right side
    14,147.04x = 167,732,728.43
  5. Step 5: Solve for x
    x = 167,732,728.43/14,147.04
  6. Step 6: Final answer
    x = 11,856.38

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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.