Home / 9,315.35-13,975.18-4,875.42

Finding the Fourth Proportional to 9,315.35, 13,975.18 and 4,875.42

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Solution

The fourth proportional to 9,315.35, 13,975.18 and 4,875.42 is: 7,314.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.35 : 13,975.18 = 4,875.42 : x
  2. Step 2: Convert to fraction form
    9,315.35/13,975.18 = 4,875.42/x
  3. Step 3: Cross multiply
    9,315.35x = 13,975.18 × 4,875.42
  4. Step 4: Simplify right side
    9,315.35x = 68,134,919.15
  5. Step 5: Solve for x
    x = 68,134,919.15/9,315.35
  6. Step 6: Final answer
    x = 7,314.27

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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.