Home / 11,534.64-15,918.51-6,690.35

Finding the Fourth Proportional to 11,534.64, 15,918.51 and 6,690.35

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Solution

The fourth proportional to 11,534.64, 15,918.51 and 6,690.35 is: 9,233.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,534.64 : 15,918.51 = 6,690.35 : x
  2. Step 2: Convert to fraction form
    11,534.64/15,918.51 = 6,690.35/x
  3. Step 3: Cross multiply
    11,534.64x = 15,918.51 × 6,690.35
  4. Step 4: Simplify right side
    11,534.64x = 106,500,323.79
  5. Step 5: Solve for x
    x = 106,500,323.79/11,534.64
  6. Step 6: Final answer
    x = 9,233.09

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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.