Home / 10,813.90-14,923.29-6,340.30

Finding the Fourth Proportional to 10,813.90, 14,923.29 and 6,340.30

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Solution

The fourth proportional to 10,813.90, 14,923.29 and 6,340.30 is: 8,749.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.90 : 14,923.29 = 6,340.30 : x
  2. Step 2: Convert to fraction form
    10,813.90/14,923.29 = 6,340.30/x
  3. Step 3: Cross multiply
    10,813.90x = 14,923.29 × 6,340.30
  4. Step 4: Simplify right side
    10,813.90x = 94,618,135.59
  5. Step 5: Solve for x
    x = 94,618,135.59/10,813.90
  6. Step 6: Final answer
    x = 8,749.68

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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.