Home / 10,206.72-15,401.88-9,840.60

Finding the Fourth Proportional to 10,206.72, 15,401.88 and 9,840.60

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Solution

The fourth proportional to 10,206.72, 15,401.88 and 9,840.60 is: 14,849.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206.72 : 15,401.88 = 9,840.60 : x
  2. Step 2: Convert to fraction form
    10,206.72/15,401.88 = 9,840.60/x
  3. Step 3: Cross multiply
    10,206.72x = 15,401.88 × 9,840.60
  4. Step 4: Simplify right side
    10,206.72x = 151,563,740.33
  5. Step 5: Solve for x
    x = 151,563,740.33/10,206.72
  6. Step 6: Final answer
    x = 14,849.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.