Home / 16,775.55-23,148.76-9,969.06

Finding the Fourth Proportional to 16,775.55, 23,148.76 and 9,969.06

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Solution

The fourth proportional to 16,775.55, 23,148.76 and 9,969.06 is: 13,756.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,775.55 : 23,148.76 = 9,969.06 : x
  2. Step 2: Convert to fraction form
    16,775.55/23,148.76 = 9,969.06/x
  3. Step 3: Cross multiply
    16,775.55x = 23,148.76 × 9,969.06
  4. Step 4: Simplify right side
    16,775.55x = 230,771,243.85
  5. Step 5: Solve for x
    x = 230,771,243.85/16,775.55
  6. Step 6: Final answer
    x = 13,756.40

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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.