Home / 10,784.40-16,176.60-4,210.80

Finding the Fourth Proportional to 10,784.40, 16,176.60 and 4,210.80

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Solution

The fourth proportional to 10,784.40, 16,176.60 and 4,210.80 is: 6,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,784.40 : 16,176.60 = 4,210.80 : x
  2. Step 2: Convert to fraction form
    10,784.40/16,176.60 = 4,210.80/x
  3. Step 3: Cross multiply
    10,784.40x = 16,176.60 × 4,210.80
  4. Step 4: Simplify right side
    10,784.40x = 68,116,427.28
  5. Step 5: Solve for x
    x = 68,116,427.28/10,784.40
  6. Step 6: Final answer
    x = 6,316.20

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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.