Home / 13,454.01-18,564.86-7,485.26

Finding the Fourth Proportional to 13,454.01, 18,564.86 and 7,485.26

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Solution

The fourth proportional to 13,454.01, 18,564.86 and 7,485.26 is: 10,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.01 : 18,564.86 = 7,485.26 : x
  2. Step 2: Convert to fraction form
    13,454.01/18,564.86 = 7,485.26/x
  3. Step 3: Cross multiply
    13,454.01x = 18,564.86 × 7,485.26
  4. Step 4: Simplify right side
    13,454.01x = 138,962,729.85
  5. Step 5: Solve for x
    x = 138,962,729.85/13,454.01
  6. Step 6: Final answer
    x = 10,328.72

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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.