Home / 10,355.24-14,290.36-5,639.52

Finding the Fourth Proportional to 10,355.24, 14,290.36 and 5,639.52

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Solution

The fourth proportional to 10,355.24, 14,290.36 and 5,639.52 is: 7,782.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.24 : 14,290.36 = 5,639.52 : x
  2. Step 2: Convert to fraction form
    10,355.24/14,290.36 = 5,639.52/x
  3. Step 3: Cross multiply
    10,355.24x = 14,290.36 × 5,639.52
  4. Step 4: Simplify right side
    10,355.24x = 80,590,771.03
  5. Step 5: Solve for x
    x = 80,590,771.03/10,355.24
  6. Step 6: Final answer
    x = 7,782.61

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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.