Home / 12,880.58-19,423.35-12,704.93

Finding the Fourth Proportional to 12,880.58, 19,423.35 and 12,704.93

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Solution

The fourth proportional to 12,880.58, 19,423.35 and 12,704.93 is: 19,158.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.58 : 19,423.35 = 12,704.93 : x
  2. Step 2: Convert to fraction form
    12,880.58/19,423.35 = 12,704.93/x
  3. Step 3: Cross multiply
    12,880.58x = 19,423.35 × 12,704.93
  4. Step 4: Simplify right side
    12,880.58x = 246,772,303.03
  5. Step 5: Solve for x
    x = 246,772,303.03/12,880.58
  6. Step 6: Final answer
    x = 19,158.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.