Home / 9,911.16-13,675.14-5,931.72

Finding the Fourth Proportional to 9,911.16, 13,675.14 and 5,931.72

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Solution

The fourth proportional to 9,911.16, 13,675.14 and 5,931.72 is: 8,184.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.16 : 13,675.14 = 5,931.72 : x
  2. Step 2: Convert to fraction form
    9,911.16/13,675.14 = 5,931.72/x
  3. Step 3: Cross multiply
    9,911.16x = 13,675.14 × 5,931.72
  4. Step 4: Simplify right side
    9,911.16x = 81,117,101.44
  5. Step 5: Solve for x
    x = 81,117,101.44/9,911.16
  6. Step 6: Final answer
    x = 8,184.42

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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.