Home / 10,427.36-14,389.68-5,647.19

Finding the Fourth Proportional to 10,427.36, 14,389.68 and 5,647.19

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Solution

The fourth proportional to 10,427.36, 14,389.68 and 5,647.19 is: 7,793.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.36 : 14,389.68 = 5,647.19 : x
  2. Step 2: Convert to fraction form
    10,427.36/14,389.68 = 5,647.19/x
  3. Step 3: Cross multiply
    10,427.36x = 14,389.68 × 5,647.19
  4. Step 4: Simplify right side
    10,427.36x = 81,261,257.00
  5. Step 5: Solve for x
    x = 81,261,257.00/10,427.36
  6. Step 6: Final answer
    x = 7,793.08

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Half scale
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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.