Home / 8,905.36-13,354.40-3,971.62

Finding the Fourth Proportional to 8,905.36, 13,354.40 and 3,971.62

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Solution

The fourth proportional to 8,905.36, 13,354.40 and 3,971.62 is: 5,955.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.36 : 13,354.40 = 3,971.62 : x
  2. Step 2: Convert to fraction form
    8,905.36/13,354.40 = 3,971.62/x
  3. Step 3: Cross multiply
    8,905.36x = 13,354.40 × 3,971.62
  4. Step 4: Simplify right side
    8,905.36x = 53,038,602.13
  5. Step 5: Solve for x
    x = 53,038,602.13/8,905.36
  6. Step 6: Final answer
    x = 5,955.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.