Home / 12,353.06-18,518.73-6,417.45

Finding the Fourth Proportional to 12,353.06, 18,518.73 and 6,417.45

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Solution

The fourth proportional to 12,353.06, 18,518.73 and 6,417.45 is: 9,620.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,353.06 : 18,518.73 = 6,417.45 : x
  2. Step 2: Convert to fraction form
    12,353.06/18,518.73 = 6,417.45/x
  3. Step 3: Cross multiply
    12,353.06x = 18,518.73 × 6,417.45
  4. Step 4: Simplify right side
    12,353.06x = 118,843,023.84
  5. Step 5: Solve for x
    x = 118,843,023.84/12,353.06
  6. Step 6: Final answer
    x = 9,620.54

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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.