Home / 19,314.56-28,898.94-12,748.70

Finding the Fourth Proportional to 19,314.56, 28,898.94 and 12,748.70

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Solution

The fourth proportional to 19,314.56, 28,898.94 and 12,748.70 is: 19,074.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,314.56 : 28,898.94 = 12,748.70 : x
  2. Step 2: Convert to fraction form
    19,314.56/28,898.94 = 12,748.70/x
  3. Step 3: Cross multiply
    19,314.56x = 28,898.94 × 12,748.70
  4. Step 4: Simplify right side
    19,314.56x = 368,423,916.38
  5. Step 5: Solve for x
    x = 368,423,916.38/19,314.56
  6. Step 6: Final answer
    x = 19,074.93

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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.