Home / 13,478.48-18,603.36-8,754.56

Finding the Fourth Proportional to 13,478.48, 18,603.36 and 8,754.56

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Solution

The fourth proportional to 13,478.48, 18,603.36 and 8,754.56 is: 12,083.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.48 : 18,603.36 = 8,754.56 : x
  2. Step 2: Convert to fraction form
    13,478.48/18,603.36 = 8,754.56/x
  3. Step 3: Cross multiply
    13,478.48x = 18,603.36 × 8,754.56
  4. Step 4: Simplify right side
    13,478.48x = 162,864,231.32
  5. Step 5: Solve for x
    x = 162,864,231.32/13,478.48
  6. Step 6: Final answer
    x = 12,083.28

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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.