Home / 9,558.07-13,189.69-5,309.40

Finding the Fourth Proportional to 9,558.07, 13,189.69 and 5,309.40

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Solution

The fourth proportional to 9,558.07, 13,189.69 and 5,309.40 is: 7,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,558.07 : 13,189.69 = 5,309.40 : x
  2. Step 2: Convert to fraction form
    9,558.07/13,189.69 = 5,309.40/x
  3. Step 3: Cross multiply
    9,558.07x = 13,189.69 × 5,309.40
  4. Step 4: Simplify right side
    9,558.07x = 70,029,292.13
  5. Step 5: Solve for x
    x = 70,029,292.13/9,558.07
  6. Step 6: Final answer
    x = 7,326.72

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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.