Home / 10,645.20-14,690.64-5,865.36

Finding the Fourth Proportional to 10,645.20, 14,690.64 and 5,865.36

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Solution

The fourth proportional to 10,645.20, 14,690.64 and 5,865.36 is: 8,094.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.20 : 14,690.64 = 5,865.36 : x
  2. Step 2: Convert to fraction form
    10,645.20/14,690.64 = 5,865.36/x
  3. Step 3: Cross multiply
    10,645.20x = 14,690.64 × 5,865.36
  4. Step 4: Simplify right side
    10,645.20x = 86,165,892.23
  5. Step 5: Solve for x
    x = 86,165,892.23/10,645.20
  6. Step 6: Final answer
    x = 8,094.34

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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.