Home / 9,986.59-13,782.71-5,737.64

Finding the Fourth Proportional to 9,986.59, 13,782.71 and 5,737.64

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Solution

The fourth proportional to 9,986.59, 13,782.71 and 5,737.64 is: 7,918.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.59 : 13,782.71 = 5,737.64 : x
  2. Step 2: Convert to fraction form
    9,986.59/13,782.71 = 5,737.64/x
  3. Step 3: Cross multiply
    9,986.59x = 13,782.71 × 5,737.64
  4. Step 4: Simplify right side
    9,986.59x = 79,080,130.60
  5. Step 5: Solve for x
    x = 79,080,130.60/9,986.59
  6. Step 6: Final answer
    x = 7,918.64

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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.