Home / 10,427.92-14,389.96-5,712.12

Finding the Fourth Proportional to 10,427.92, 14,389.96 and 5,712.12

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Solution

The fourth proportional to 10,427.92, 14,389.96 and 5,712.12 is: 7,882.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.92 : 14,389.96 = 5,712.12 : x
  2. Step 2: Convert to fraction form
    10,427.92/14,389.96 = 5,712.12/x
  3. Step 3: Cross multiply
    10,427.92x = 14,389.96 × 5,712.12
  4. Step 4: Simplify right side
    10,427.92x = 82,197,178.32
  5. Step 5: Solve for x
    x = 82,197,178.32/10,427.92
  6. Step 6: Final answer
    x = 7,882.41

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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.