Home / 10,340.87-14,270.70-6,364.31

Finding the Fourth Proportional to 10,340.87, 14,270.70 and 6,364.31

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Solution

The fourth proportional to 10,340.87, 14,270.70 and 6,364.31 is: 8,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.87 : 14,270.70 = 6,364.31 : x
  2. Step 2: Convert to fraction form
    10,340.87/14,270.70 = 6,364.31/x
  3. Step 3: Cross multiply
    10,340.87x = 14,270.70 × 6,364.31
  4. Step 4: Simplify right side
    10,340.87x = 90,823,158.72
  5. Step 5: Solve for x
    x = 90,823,158.72/10,340.87
  6. Step 6: Final answer
    x = 8,782.93

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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.