Home / 13,293.54-18,346.32-7,988.22

Finding the Fourth Proportional to 13,293.54, 18,346.32 and 7,988.22

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Solution

The fourth proportional to 13,293.54, 18,346.32 and 7,988.22 is: 11,024.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.54 : 18,346.32 = 7,988.22 : x
  2. Step 2: Convert to fraction form
    13,293.54/18,346.32 = 7,988.22/x
  3. Step 3: Cross multiply
    13,293.54x = 18,346.32 × 7,988.22
  4. Step 4: Simplify right side
    13,293.54x = 146,554,440.35
  5. Step 5: Solve for x
    x = 146,554,440.35/13,293.54
  6. Step 6: Final answer
    x = 11,024.49

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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.