Home / 8,955.86-12,359.46-4,977

Finding the Fourth Proportional to 8,955.86, 12,359.46 and 4,977

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Solution

The fourth proportional to 8,955.86, 12,359.46 and 4,977 is: 6,868.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.86 : 12,359.46 = 4,977 : x
  2. Step 2: Convert to fraction form
    8,955.86/12,359.46 = 4,977/x
  3. Step 3: Cross multiply
    8,955.86x = 12,359.46 × 4,977
  4. Step 4: Simplify right side
    8,955.86x = 61,513,032.42
  5. Step 5: Solve for x
    x = 61,513,032.42/8,955.86
  6. Step 6: Final answer
    x = 6,868.47

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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.