Home / 7,518.79-10,378.02-4,375.59

Finding the Fourth Proportional to 7,518.79, 10,378.02 and 4,375.59

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Solution

The fourth proportional to 7,518.79, 10,378.02 and 4,375.59 is: 6,039.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.79 : 10,378.02 = 4,375.59 : x
  2. Step 2: Convert to fraction form
    7,518.79/10,378.02 = 4,375.59/x
  3. Step 3: Cross multiply
    7,518.79x = 10,378.02 × 4,375.59
  4. Step 4: Simplify right side
    7,518.79x = 45,409,960.53
  5. Step 5: Solve for x
    x = 45,409,960.53/7,518.79
  6. Step 6: Final answer
    x = 6,039.53

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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.