Home / 15,880.70-23,788.74-12,743.72

Finding the Fourth Proportional to 15,880.70, 23,788.74 and 12,743.72

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Solution

The fourth proportional to 15,880.70, 23,788.74 and 12,743.72 is: 19,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,880.70 : 23,788.74 = 12,743.72 : x
  2. Step 2: Convert to fraction form
    15,880.70/23,788.74 = 12,743.72/x
  3. Step 3: Cross multiply
    15,880.70x = 23,788.74 × 12,743.72
  4. Step 4: Simplify right side
    15,880.70x = 303,157,041.71
  5. Step 5: Solve for x
    x = 303,157,041.71/15,880.70
  6. Step 6: Final answer
    x = 19,089.65

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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.