Home / 14,986.37-20,689.47-9,019.50

Finding the Fourth Proportional to 14,986.37, 20,689.47 and 9,019.50

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Solution

The fourth proportional to 14,986.37, 20,689.47 and 9,019.50 is: 12,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.37 : 20,689.47 = 9,019.50 : x
  2. Step 2: Convert to fraction form
    14,986.37/20,689.47 = 9,019.50/x
  3. Step 3: Cross multiply
    14,986.37x = 20,689.47 × 9,019.50
  4. Step 4: Simplify right side
    14,986.37x = 186,608,674.67
  5. Step 5: Solve for x
    x = 186,608,674.67/14,986.37
  6. Step 6: Final answer
    x = 12,451.90

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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.