Home / 12,610.80-18,898.38-5,210.64

Finding the Fourth Proportional to 12,610.80, 18,898.38 and 5,210.64

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Solution

The fourth proportional to 12,610.80, 18,898.38 and 5,210.64 is: 7,808.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.80 : 18,898.38 = 5,210.64 : x
  2. Step 2: Convert to fraction form
    12,610.80/18,898.38 = 5,210.64/x
  3. Step 3: Cross multiply
    12,610.80x = 18,898.38 × 5,210.64
  4. Step 4: Simplify right side
    12,610.80x = 98,472,654.76
  5. Step 5: Solve for x
    x = 98,472,654.76/12,610.80
  6. Step 6: Final answer
    x = 7,808.60

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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.