Home / 10,487.52-15,722.28-4,639.68

Finding the Fourth Proportional to 10,487.52, 15,722.28 and 4,639.68

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Solution

The fourth proportional to 10,487.52, 15,722.28 and 4,639.68 is: 6,955.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.52 : 15,722.28 = 4,639.68 : x
  2. Step 2: Convert to fraction form
    10,487.52/15,722.28 = 4,639.68/x
  3. Step 3: Cross multiply
    10,487.52x = 15,722.28 × 4,639.68
  4. Step 4: Simplify right side
    10,487.52x = 72,946,348.07
  5. Step 5: Solve for x
    x = 72,946,348.07/10,487.52
  6. Step 6: Final answer
    x = 6,955.54

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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.