Home / 12,657.07-18,967.78-5,986.45

Finding the Fourth Proportional to 12,657.07, 18,967.78 and 5,986.45

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Solution

The fourth proportional to 12,657.07, 18,967.78 and 5,986.45 is: 8,971.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.07 : 18,967.78 = 5,986.45 : x
  2. Step 2: Convert to fraction form
    12,657.07/18,967.78 = 5,986.45/x
  3. Step 3: Cross multiply
    12,657.07x = 18,967.78 × 5,986.45
  4. Step 4: Simplify right side
    12,657.07x = 113,549,666.58
  5. Step 5: Solve for x
    x = 113,549,666.58/12,657.07
  6. Step 6: Final answer
    x = 8,971.24

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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.