Home / 7,899.73-10,903.80-4,913.79

Finding the Fourth Proportional to 7,899.73, 10,903.80 and 4,913.79

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Solution

The fourth proportional to 7,899.73, 10,903.80 and 4,913.79 is: 6,782.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.73 : 10,903.80 = 4,913.79 : x
  2. Step 2: Convert to fraction form
    7,899.73/10,903.80 = 4,913.79/x
  3. Step 3: Cross multiply
    7,899.73x = 10,903.80 × 4,913.79
  4. Step 4: Simplify right side
    7,899.73x = 53,578,983.40
  5. Step 5: Solve for x
    x = 53,578,983.40/7,899.73
  6. Step 6: Final answer
    x = 6,782.38

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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.