Home / 7,816.36-10,787.31-4,672.48

Finding the Fourth Proportional to 7,816.36, 10,787.31 and 4,672.48

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Solution

The fourth proportional to 7,816.36, 10,787.31 and 4,672.48 is: 6,448.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.36 : 10,787.31 = 4,672.48 : x
  2. Step 2: Convert to fraction form
    7,816.36/10,787.31 = 4,672.48/x
  3. Step 3: Cross multiply
    7,816.36x = 10,787.31 × 4,672.48
  4. Step 4: Simplify right side
    7,816.36x = 50,403,490.23
  5. Step 5: Solve for x
    x = 50,403,490.23/7,816.36
  6. Step 6: Final answer
    x = 6,448.46

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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.