Home / 10,427.56-14,402.82-8,440.36

Finding the Fourth Proportional to 10,427.56, 14,402.82 and 8,440.36

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Solution

The fourth proportional to 10,427.56, 14,402.82 and 8,440.36 is: 11,658.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.56 : 14,402.82 = 8,440.36 : x
  2. Step 2: Convert to fraction form
    10,427.56/14,402.82 = 8,440.36/x
  3. Step 3: Cross multiply
    10,427.56x = 14,402.82 × 8,440.36
  4. Step 4: Simplify right side
    10,427.56x = 121,564,985.82
  5. Step 5: Solve for x
    x = 121,564,985.82/10,427.56
  6. Step 6: Final answer
    x = 11,658.05

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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.