Home / 9,120.95-13,683.51-2,880.93

Finding the Fourth Proportional to 9,120.95, 13,683.51 and 2,880.93

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Solution

The fourth proportional to 9,120.95, 13,683.51 and 2,880.93 is: 4,322.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.95 : 13,683.51 = 2,880.93 : x
  2. Step 2: Convert to fraction form
    9,120.95/13,683.51 = 2,880.93/x
  3. Step 3: Cross multiply
    9,120.95x = 13,683.51 × 2,880.93
  4. Step 4: Simplify right side
    9,120.95x = 39,421,285.78
  5. Step 5: Solve for x
    x = 39,421,285.78/9,120.95
  6. Step 6: Final answer
    x = 4,322.06

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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.