Home / 9,485.40-13,089.80-5,293.64

Finding the Fourth Proportional to 9,485.40, 13,089.80 and 5,293.64

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Solution

The fourth proportional to 9,485.40, 13,089.80 and 5,293.64 is: 7,305.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,485.40 : 13,089.80 = 5,293.64 : x
  2. Step 2: Convert to fraction form
    9,485.40/13,089.80 = 5,293.64/x
  3. Step 3: Cross multiply
    9,485.40x = 13,089.80 × 5,293.64
  4. Step 4: Simplify right side
    9,485.40x = 69,292,688.87
  5. Step 5: Solve for x
    x = 69,292,688.87/9,485.40
  6. Step 6: Final answer
    x = 7,305.19

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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.