Home / 9,271.40-12,798.66-5,918.64

Finding the Fourth Proportional to 9,271.40, 12,798.66 and 5,918.64

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Solution

The fourth proportional to 9,271.40, 12,798.66 and 5,918.64 is: 8,170.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,271.40 : 12,798.66 = 5,918.64 : x
  2. Step 2: Convert to fraction form
    9,271.40/12,798.66 = 5,918.64/x
  3. Step 3: Cross multiply
    9,271.40x = 12,798.66 × 5,918.64
  4. Step 4: Simplify right side
    9,271.40x = 75,750,661.02
  5. Step 5: Solve for x
    x = 75,750,661.02/9,271.40
  6. Step 6: Final answer
    x = 8,170.36

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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.