Home / 15,775.02-21,771.86-10,396.62

Finding the Fourth Proportional to 15,775.02, 21,771.86 and 10,396.62

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Solution

The fourth proportional to 15,775.02, 21,771.86 and 10,396.62 is: 14,348.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,775.02 : 21,771.86 = 10,396.62 : x
  2. Step 2: Convert to fraction form
    15,775.02/21,771.86 = 10,396.62/x
  3. Step 3: Cross multiply
    15,775.02x = 21,771.86 × 10,396.62
  4. Step 4: Simplify right side
    15,775.02x = 226,353,703.13
  5. Step 5: Solve for x
    x = 226,353,703.13/15,775.02
  6. Step 6: Final answer
    x = 14,348.87

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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.