Home / 26,423.61-39,640.58-9,783.78

Finding the Fourth Proportional to 26,423.61, 39,640.58 and 9,783.78

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Solution

The fourth proportional to 26,423.61, 39,640.58 and 9,783.78 is: 14,677.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,423.61 : 39,640.58 = 9,783.78 : x
  2. Step 2: Convert to fraction form
    26,423.61/39,640.58 = 9,783.78/x
  3. Step 3: Cross multiply
    26,423.61x = 39,640.58 × 9,783.78
  4. Step 4: Simplify right side
    26,423.61x = 387,834,713.79
  5. Step 5: Solve for x
    x = 387,834,713.79/26,423.61
  6. Step 6: Final answer
    x = 14,677.58

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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.