Home / 16,810.84-25,220.21-9,420.40

Finding the Fourth Proportional to 16,810.84, 25,220.21 and 9,420.40

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Solution

The fourth proportional to 16,810.84, 25,220.21 and 9,420.40 is: 14,132.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,810.84 : 25,220.21 = 9,420.40 : x
  2. Step 2: Convert to fraction form
    16,810.84/25,220.21 = 9,420.40/x
  3. Step 3: Cross multiply
    16,810.84x = 25,220.21 × 9,420.40
  4. Step 4: Simplify right side
    16,810.84x = 237,584,503.70
  5. Step 5: Solve for x
    x = 237,584,503.70/16,810.84
  6. Step 6: Final answer
    x = 14,132.81

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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.