Home / 9,285.10-13,929.81-5,124.11

Finding the Fourth Proportional to 9,285.10, 13,929.81 and 5,124.11

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Solution

The fourth proportional to 9,285.10, 13,929.81 and 5,124.11 is: 7,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.10 : 13,929.81 = 5,124.11 : x
  2. Step 2: Convert to fraction form
    9,285.10/13,929.81 = 5,124.11/x
  3. Step 3: Cross multiply
    9,285.10x = 13,929.81 × 5,124.11
  4. Step 4: Simplify right side
    9,285.10x = 71,377,809.07
  5. Step 5: Solve for x
    x = 71,377,809.07/9,285.10
  6. Step 6: Final answer
    x = 7,687.35

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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.