Home / 13,828.83-19,084.76-7,860.95

Finding the Fourth Proportional to 13,828.83, 19,084.76 and 7,860.95

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Solution

The fourth proportional to 13,828.83, 19,084.76 and 7,860.95 is: 10,848.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.83 : 19,084.76 = 7,860.95 : x
  2. Step 2: Convert to fraction form
    13,828.83/19,084.76 = 7,860.95/x
  3. Step 3: Cross multiply
    13,828.83x = 19,084.76 × 7,860.95
  4. Step 4: Simplify right side
    13,828.83x = 150,024,354.66
  5. Step 5: Solve for x
    x = 150,024,354.66/13,828.83
  6. Step 6: Final answer
    x = 10,848.67

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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.