Home / 13,829.74-19,084.86-7,861.01

Finding the Fourth Proportional to 13,829.74, 19,084.86 and 7,861.01

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Solution

The fourth proportional to 13,829.74, 19,084.86 and 7,861.01 is: 10,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.74 : 19,084.86 = 7,861.01 : x
  2. Step 2: Convert to fraction form
    13,829.74/19,084.86 = 7,861.01/x
  3. Step 3: Cross multiply
    13,829.74x = 19,084.86 × 7,861.01
  4. Step 4: Simplify right side
    13,829.74x = 150,026,358.80
  5. Step 5: Solve for x
    x = 150,026,358.80/13,829.74
  6. Step 6: Final answer
    x = 10,848.10

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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.