Home / 13,817.12-19,068.30-7,848.68

Finding the Fourth Proportional to 13,817.12, 19,068.30 and 7,848.68

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Solution

The fourth proportional to 13,817.12, 19,068.30 and 7,848.68 is: 10,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.12 : 19,068.30 = 7,848.68 : x
  2. Step 2: Convert to fraction form
    13,817.12/19,068.30 = 7,848.68/x
  3. Step 3: Cross multiply
    13,817.12x = 19,068.30 × 7,848.68
  4. Step 4: Simplify right side
    13,817.12x = 149,660,984.84
  5. Step 5: Solve for x
    x = 149,660,984.84/13,817.12
  6. Step 6: Final answer
    x = 10,831.56

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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.