Home / 12,403.61-18,618.74-5,012.92

Finding the Fourth Proportional to 12,403.61, 18,618.74 and 5,012.92

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Solution

The fourth proportional to 12,403.61, 18,618.74 and 5,012.92 is: 7,524.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.61 : 18,618.74 = 5,012.92 : x
  2. Step 2: Convert to fraction form
    12,403.61/18,618.74 = 5,012.92/x
  3. Step 3: Cross multiply
    12,403.61x = 18,618.74 × 5,012.92
  4. Step 4: Simplify right side
    12,403.61x = 93,334,254.12
  5. Step 5: Solve for x
    x = 93,334,254.12/12,403.61
  6. Step 6: Final answer
    x = 7,524.77

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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.