Home / 13,342.64-18,402.48-8,563.04

Finding the Fourth Proportional to 13,342.64, 18,402.48 and 8,563.04

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Solution

The fourth proportional to 13,342.64, 18,402.48 and 8,563.04 is: 11,810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.64 : 18,402.48 = 8,563.04 : x
  2. Step 2: Convert to fraction form
    13,342.64/18,402.48 = 8,563.04/x
  3. Step 3: Cross multiply
    13,342.64x = 18,402.48 × 8,563.04
  4. Step 4: Simplify right side
    13,342.64x = 157,581,172.34
  5. Step 5: Solve for x
    x = 157,581,172.34/13,342.64
  6. Step 6: Final answer
    x = 11,810.34

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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.