Home / 13,848.68-19,110.26-7,880.20

Finding the Fourth Proportional to 13,848.68, 19,110.26 and 7,880.20

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Solution

The fourth proportional to 13,848.68, 19,110.26 and 7,880.20 is: 10,874.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,848.68 : 19,110.26 = 7,880.20 : x
  2. Step 2: Convert to fraction form
    13,848.68/19,110.26 = 7,880.20/x
  3. Step 3: Cross multiply
    13,848.68x = 19,110.26 × 7,880.20
  4. Step 4: Simplify right side
    13,848.68x = 150,592,670.85
  5. Step 5: Solve for x
    x = 150,592,670.85/13,848.68
  6. Step 6: Final answer
    x = 10,874.15

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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.