Home / 14,690.84-20,289.90-9,966.92

Finding the Fourth Proportional to 14,690.84, 20,289.90 and 9,966.92

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Solution

The fourth proportional to 14,690.84, 20,289.90 and 9,966.92 is: 13,765.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,690.84 : 20,289.90 = 9,966.92 : x
  2. Step 2: Convert to fraction form
    14,690.84/20,289.90 = 9,966.92/x
  3. Step 3: Cross multiply
    14,690.84x = 20,289.90 × 9,966.92
  4. Step 4: Simplify right side
    14,690.84x = 202,227,810.11
  5. Step 5: Solve for x
    x = 202,227,810.11/14,690.84
  6. Step 6: Final answer
    x = 13,765.57

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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.