Home / 8,890.14-12,268.64-5,307.18

Finding the Fourth Proportional to 8,890.14, 12,268.64 and 5,307.18

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Solution

The fourth proportional to 8,890.14, 12,268.64 and 5,307.18 is: 7,324.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.14 : 12,268.64 = 5,307.18 : x
  2. Step 2: Convert to fraction form
    8,890.14/12,268.64 = 5,307.18/x
  3. Step 3: Cross multiply
    8,890.14x = 12,268.64 × 5,307.18
  4. Step 4: Simplify right side
    8,890.14x = 65,111,852.75
  5. Step 5: Solve for x
    x = 65,111,852.75/8,890.14
  6. Step 6: Final answer
    x = 7,324.05

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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.