Home / 13,546.56-18,688.32-7,955.04

Finding the Fourth Proportional to 13,546.56, 18,688.32 and 7,955.04

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Solution

The fourth proportional to 13,546.56, 18,688.32 and 7,955.04 is: 10,974.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.56 : 18,688.32 = 7,955.04 : x
  2. Step 2: Convert to fraction form
    13,546.56/18,688.32 = 7,955.04/x
  3. Step 3: Cross multiply
    13,546.56x = 18,688.32 × 7,955.04
  4. Step 4: Simplify right side
    13,546.56x = 148,666,333.13
  5. Step 5: Solve for x
    x = 148,666,333.13/13,546.56
  6. Step 6: Final answer
    x = 10,974.47

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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.