Home / 11,303.68-16,960.56-4,378.72

Finding the Fourth Proportional to 11,303.68, 16,960.56 and 4,378.72

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Solution

The fourth proportional to 11,303.68, 16,960.56 and 4,378.72 is: 6,570.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,303.68 : 16,960.56 = 4,378.72 : x
  2. Step 2: Convert to fraction form
    11,303.68/16,960.56 = 4,378.72/x
  3. Step 3: Cross multiply
    11,303.68x = 16,960.56 × 4,378.72
  4. Step 4: Simplify right side
    11,303.68x = 74,265,543.28
  5. Step 5: Solve for x
    x = 74,265,543.28/11,303.68
  6. Step 6: Final answer
    x = 6,570.03

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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.