Home / 14,701.45-20,287.65-7,986.93

Finding the Fourth Proportional to 14,701.45, 20,287.65 and 7,986.93

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Solution

The fourth proportional to 14,701.45, 20,287.65 and 7,986.93 is: 11,021.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,701.45 : 20,287.65 = 7,986.93 : x
  2. Step 2: Convert to fraction form
    14,701.45/20,287.65 = 7,986.93/x
  3. Step 3: Cross multiply
    14,701.45x = 20,287.65 × 7,986.93
  4. Step 4: Simplify right side
    14,701.45x = 162,036,040.41
  5. Step 5: Solve for x
    x = 162,036,040.41/14,701.45
  6. Step 6: Final answer
    x = 11,021.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.