Home / 19,135.23-26,406.93-10,521.78

Finding the Fourth Proportional to 19,135.23, 26,406.93 and 10,521.78

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Solution

The fourth proportional to 19,135.23, 26,406.93 and 10,521.78 is: 14,520.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.23 : 26,406.93 = 10,521.78 : x
  2. Step 2: Convert to fraction form
    19,135.23/26,406.93 = 10,521.78/x
  3. Step 3: Cross multiply
    19,135.23x = 26,406.93 × 10,521.78
  4. Step 4: Simplify right side
    19,135.23x = 277,847,841.92
  5. Step 5: Solve for x
    x = 277,847,841.92/19,135.23
  6. Step 6: Final answer
    x = 14,520.23

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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.