Home / 9,431.85-13,015.35-5,655.32

Finding the Fourth Proportional to 9,431.85, 13,015.35 and 5,655.32

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Solution

The fourth proportional to 9,431.85, 13,015.35 and 5,655.32 is: 7,803.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.85 : 13,015.35 = 5,655.32 : x
  2. Step 2: Convert to fraction form
    9,431.85/13,015.35 = 5,655.32/x
  3. Step 3: Cross multiply
    9,431.85x = 13,015.35 × 5,655.32
  4. Step 4: Simplify right side
    9,431.85x = 73,605,904.09
  5. Step 5: Solve for x
    x = 73,605,904.09/9,431.85
  6. Step 6: Final answer
    x = 7,803.97

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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.