Home / 10,639.04-15,955.32-5,089.46

Finding the Fourth Proportional to 10,639.04, 15,955.32 and 5,089.46

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Solution

The fourth proportional to 10,639.04, 15,955.32 and 5,089.46 is: 7,632.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.04 : 15,955.32 = 5,089.46 : x
  2. Step 2: Convert to fraction form
    10,639.04/15,955.32 = 5,089.46/x
  3. Step 3: Cross multiply
    10,639.04x = 15,955.32 × 5,089.46
  4. Step 4: Simplify right side
    10,639.04x = 81,203,962.93
  5. Step 5: Solve for x
    x = 81,203,962.93/10,639.04
  6. Step 6: Final answer
    x = 7,632.64

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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.