Home / 13,875.60-19,150-7,908.50

Finding the Fourth Proportional to 13,875.60, 19,150 and 7,908.50

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Solution

The fourth proportional to 13,875.60, 19,150 and 7,908.50 is: 10,914.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.60 : 19,150 = 7,908.50 : x
  2. Step 2: Convert to fraction form
    13,875.60/19,150 = 7,908.50/x
  3. Step 3: Cross multiply
    13,875.60x = 19,150 × 7,908.50
  4. Step 4: Simplify right side
    13,875.60x = 151,447,775
  5. Step 5: Solve for x
    x = 151,447,775/13,875.60
  6. Step 6: Final answer
    x = 10,914.68

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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.