Home / 10,140.57-13,993.56-6,365.70

Finding the Fourth Proportional to 10,140.57, 13,993.56 and 6,365.70

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Solution

The fourth proportional to 10,140.57, 13,993.56 and 6,365.70 is: 8,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.57 : 13,993.56 = 6,365.70 : x
  2. Step 2: Convert to fraction form
    10,140.57/13,993.56 = 6,365.70/x
  3. Step 3: Cross multiply
    10,140.57x = 13,993.56 × 6,365.70
  4. Step 4: Simplify right side
    10,140.57x = 89,078,804.89
  5. Step 5: Solve for x
    x = 89,078,804.89/10,140.57
  6. Step 6: Final answer
    x = 8,784.40

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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.