Home / 7,964.31-10,985.67-6,285.18

Finding the Fourth Proportional to 7,964.31, 10,985.67 and 6,285.18

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Solution

The fourth proportional to 7,964.31, 10,985.67 and 6,285.18 is: 8,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.31 : 10,985.67 = 6,285.18 : x
  2. Step 2: Convert to fraction form
    7,964.31/10,985.67 = 6,285.18/x
  3. Step 3: Cross multiply
    7,964.31x = 10,985.67 × 6,285.18
  4. Step 4: Simplify right side
    7,964.31x = 69,046,913.37
  5. Step 5: Solve for x
    x = 69,046,913.37/7,964.31
  6. Step 6: Final answer
    x = 8,669.54

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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.