Home / 19,200.18-26,506.70-13,263.78

Finding the Fourth Proportional to 19,200.18, 26,506.70 and 13,263.78

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Solution

The fourth proportional to 19,200.18, 26,506.70 and 13,263.78 is: 18,311.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200.18 : 26,506.70 = 13,263.78 : x
  2. Step 2: Convert to fraction form
    19,200.18/26,506.70 = 13,263.78/x
  3. Step 3: Cross multiply
    19,200.18x = 26,506.70 × 13,263.78
  4. Step 4: Simplify right side
    19,200.18x = 351,579,037.33
  5. Step 5: Solve for x
    x = 351,579,037.33/19,200.18
  6. Step 6: Final answer
    x = 18,311.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.