Home / 19,357.50-28,981.16-12,763.56

Finding the Fourth Proportional to 19,357.50, 28,981.16 and 12,763.56

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Solution

The fourth proportional to 19,357.50, 28,981.16 and 12,763.56 is: 19,109.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,357.50 : 28,981.16 = 12,763.56 : x
  2. Step 2: Convert to fraction form
    19,357.50/28,981.16 = 12,763.56/x
  3. Step 3: Cross multiply
    19,357.50x = 28,981.16 × 12,763.56
  4. Step 4: Simplify right side
    19,357.50x = 369,902,774.53
  5. Step 5: Solve for x
    x = 369,902,774.53/19,357.50
  6. Step 6: Final answer
    x = 19,109.02

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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.