Home / 13,811.60-19,059.34-7,842.48

Finding the Fourth Proportional to 13,811.60, 19,059.34 and 7,842.48

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Solution

The fourth proportional to 13,811.60, 19,059.34 and 7,842.48 is: 10,822.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.60 : 19,059.34 = 7,842.48 : x
  2. Step 2: Convert to fraction form
    13,811.60/19,059.34 = 7,842.48/x
  3. Step 3: Cross multiply
    13,811.60x = 19,059.34 × 7,842.48
  4. Step 4: Simplify right side
    13,811.60x = 149,472,492.76
  5. Step 5: Solve for x
    x = 149,472,492.76/13,811.60
  6. Step 6: Final answer
    x = 10,822.24

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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.