Home / 14,986.29-20,688.60-9,322.89

Finding the Fourth Proportional to 14,986.29, 20,688.60 and 9,322.89

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Solution

The fourth proportional to 14,986.29, 20,688.60 and 9,322.89 is: 12,870.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.29 : 20,688.60 = 9,322.89 : x
  2. Step 2: Convert to fraction form
    14,986.29/20,688.60 = 9,322.89/x
  3. Step 3: Cross multiply
    14,986.29x = 20,688.60 × 9,322.89
  4. Step 4: Simplify right side
    14,986.29x = 192,877,542.05
  5. Step 5: Solve for x
    x = 192,877,542.05/14,986.29
  6. Step 6: Final answer
    x = 12,870.27

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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.