Home / 12,610.90-18,904.35-4,711.30

Finding the Fourth Proportional to 12,610.90, 18,904.35 and 4,711.30

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Solution

The fourth proportional to 12,610.90, 18,904.35 and 4,711.30 is: 7,062.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.90 : 18,904.35 = 4,711.30 : x
  2. Step 2: Convert to fraction form
    12,610.90/18,904.35 = 4,711.30/x
  3. Step 3: Cross multiply
    12,610.90x = 18,904.35 × 4,711.30
  4. Step 4: Simplify right side
    12,610.90x = 89,064,064.16
  5. Step 5: Solve for x
    x = 89,064,064.16/12,610.90
  6. Step 6: Final answer
    x = 7,062.47

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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.