Home / 10,354.88-14,289.81-5,639.33

Finding the Fourth Proportional to 10,354.88, 14,289.81 and 5,639.33

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Solution

The fourth proportional to 10,354.88, 14,289.81 and 5,639.33 is: 7,782.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.88 : 14,289.81 = 5,639.33 : x
  2. Step 2: Convert to fraction form
    10,354.88/14,289.81 = 5,639.33/x
  3. Step 3: Cross multiply
    10,354.88x = 14,289.81 × 5,639.33
  4. Step 4: Simplify right side
    10,354.88x = 80,584,954.23
  5. Step 5: Solve for x
    x = 80,584,954.23/10,354.88
  6. Step 6: Final answer
    x = 7,782.32

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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.