Home / 10,637.36-15,942.32-4,390.40

Finding the Fourth Proportional to 10,637.36, 15,942.32 and 4,390.40

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Solution

The fourth proportional to 10,637.36, 15,942.32 and 4,390.40 is: 6,579.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,637.36 : 15,942.32 = 4,390.40 : x
  2. Step 2: Convert to fraction form
    10,637.36/15,942.32 = 4,390.40/x
  3. Step 3: Cross multiply
    10,637.36x = 15,942.32 × 4,390.40
  4. Step 4: Simplify right side
    10,637.36x = 69,993,161.73
  5. Step 5: Solve for x
    x = 69,993,161.73/10,637.36
  6. Step 6: Final answer
    x = 6,579.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.