Home / 13,295.64-18,356.79-10,265.28

Finding the Fourth Proportional to 13,295.64, 18,356.79 and 10,265.28

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Solution

The fourth proportional to 13,295.64, 18,356.79 and 10,265.28 is: 14,172.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.64 : 18,356.79 = 10,265.28 : x
  2. Step 2: Convert to fraction form
    13,295.64/18,356.79 = 10,265.28/x
  3. Step 3: Cross multiply
    13,295.64x = 18,356.79 × 10,265.28
  4. Step 4: Simplify right side
    13,295.64x = 188,437,589.25
  5. Step 5: Solve for x
    x = 188,437,589.25/13,295.64
  6. Step 6: Final answer
    x = 14,172.89

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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.