Home / 13,533.19-18,675.75-7,564.85

Finding the Fourth Proportional to 13,533.19, 18,675.75 and 7,564.85

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Solution

The fourth proportional to 13,533.19, 18,675.75 and 7,564.85 is: 10,439.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.19 : 18,675.75 = 7,564.85 : x
  2. Step 2: Convert to fraction form
    13,533.19/18,675.75 = 7,564.85/x
  3. Step 3: Cross multiply
    13,533.19x = 18,675.75 × 7,564.85
  4. Step 4: Simplify right side
    13,533.19x = 141,279,247.39
  5. Step 5: Solve for x
    x = 141,279,247.39/13,533.19
  6. Step 6: Final answer
    x = 10,439.46

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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.