Home / 13,453.26-18,565.02-7,485.18

Finding the Fourth Proportional to 13,453.26, 18,565.02 and 7,485.18

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Solution

The fourth proportional to 13,453.26, 18,565.02 and 7,485.18 is: 10,329.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.26 : 18,565.02 = 7,485.18 : x
  2. Step 2: Convert to fraction form
    13,453.26/18,565.02 = 7,485.18/x
  3. Step 3: Cross multiply
    13,453.26x = 18,565.02 × 7,485.18
  4. Step 4: Simplify right side
    13,453.26x = 138,962,516.40
  5. Step 5: Solve for x
    x = 138,962,516.40/13,453.26
  6. Step 6: Final answer
    x = 10,329.28

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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.