Home / 7,916.15-10,921.52-4,929.53

Finding the Fourth Proportional to 7,916.15, 10,921.52 and 4,929.53

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Solution

The fourth proportional to 7,916.15, 10,921.52 and 4,929.53 is: 6,801.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.15 : 10,921.52 = 4,929.53 : x
  2. Step 2: Convert to fraction form
    7,916.15/10,921.52 = 4,929.53/x
  3. Step 3: Cross multiply
    7,916.15x = 10,921.52 × 4,929.53
  4. Step 4: Simplify right side
    7,916.15x = 53,837,881.23
  5. Step 5: Solve for x
    x = 53,837,881.23/7,916.15
  6. Step 6: Final answer
    x = 6,801.02

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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.