Home / 12,438.86-18,657.95-5,043.15

Finding the Fourth Proportional to 12,438.86, 18,657.95 and 5,043.15

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Solution

The fourth proportional to 12,438.86, 18,657.95 and 5,043.15 is: 7,564.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438.86 : 18,657.95 = 5,043.15 : x
  2. Step 2: Convert to fraction form
    12,438.86/18,657.95 = 5,043.15/x
  3. Step 3: Cross multiply
    12,438.86x = 18,657.95 × 5,043.15
  4. Step 4: Simplify right side
    12,438.86x = 94,094,815.33
  5. Step 5: Solve for x
    x = 94,094,815.33/12,438.86
  6. Step 6: Final answer
    x = 7,564.59

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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.