Home / 7,927.67-10,918.11-6,128.52

Finding the Fourth Proportional to 7,927.67, 10,918.11 and 6,128.52

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Solution

The fourth proportional to 7,927.67, 10,918.11 and 6,128.52 is: 8,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.67 : 10,918.11 = 6,128.52 : x
  2. Step 2: Convert to fraction form
    7,927.67/10,918.11 = 6,128.52/x
  3. Step 3: Cross multiply
    7,927.67x = 10,918.11 × 6,128.52
  4. Step 4: Simplify right side
    7,927.67x = 66,911,855.50
  5. Step 5: Solve for x
    x = 66,911,855.50/7,927.67
  6. Step 6: Final answer
    x = 8,440.30

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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.