Home / 10,299.98-15,429.36-4,745.72

Finding the Fourth Proportional to 10,299.98, 15,429.36 and 4,745.72

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Solution

The fourth proportional to 10,299.98, 15,429.36 and 4,745.72 is: 7,109.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,299.98 : 15,429.36 = 4,745.72 : x
  2. Step 2: Convert to fraction form
    10,299.98/15,429.36 = 4,745.72/x
  3. Step 3: Cross multiply
    10,299.98x = 15,429.36 × 4,745.72
  4. Step 4: Simplify right side
    10,299.98x = 73,223,422.34
  5. Step 5: Solve for x
    x = 73,223,422.34/10,299.98
  6. Step 6: Final answer
    x = 7,109.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.