Home / 10,455.10-14,427.39-5,739.35

Finding the Fourth Proportional to 10,455.10, 14,427.39 and 5,739.35

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Solution

The fourth proportional to 10,455.10, 14,427.39 and 5,739.35 is: 7,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.10 : 14,427.39 = 5,739.35 : x
  2. Step 2: Convert to fraction form
    10,455.10/14,427.39 = 5,739.35/x
  3. Step 3: Cross multiply
    10,455.10x = 14,427.39 × 5,739.35
  4. Step 4: Simplify right side
    10,455.10x = 82,803,840.80
  5. Step 5: Solve for x
    x = 82,803,840.80/10,455.10
  6. Step 6: Final answer
    x = 7,919.95

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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.