Home / 13,533.84-18,673.56-7,869.48

Finding the Fourth Proportional to 13,533.84, 18,673.56 and 7,869.48

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Solution

The fourth proportional to 13,533.84, 18,673.56 and 7,869.48 is: 10,858.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.84 : 18,673.56 = 7,869.48 : x
  2. Step 2: Convert to fraction form
    13,533.84/18,673.56 = 7,869.48/x
  3. Step 3: Cross multiply
    13,533.84x = 18,673.56 × 7,869.48
  4. Step 4: Simplify right side
    13,533.84x = 146,951,206.95
  5. Step 5: Solve for x
    x = 146,951,206.95/13,533.84
  6. Step 6: Final answer
    x = 10,858.06

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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.