Home / 7,675.90-11,518.70-4,395.40

Finding the Fourth Proportional to 7,675.90, 11,518.70 and 4,395.40

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Solution

The fourth proportional to 7,675.90, 11,518.70 and 4,395.40 is: 6,595.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,675.90 : 11,518.70 = 4,395.40 : x
  2. Step 2: Convert to fraction form
    7,675.90/11,518.70 = 4,395.40/x
  3. Step 3: Cross multiply
    7,675.90x = 11,518.70 × 4,395.40
  4. Step 4: Simplify right side
    7,675.90x = 50,629,272.00
  5. Step 5: Solve for x
    x = 50,629,272.00/7,675.90
  6. Step 6: Final answer
    x = 6,595.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.