Home / 14,991.18-20,688.30-8,277.06

Finding the Fourth Proportional to 14,991.18, 20,688.30 and 8,277.06

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Solution

The fourth proportional to 14,991.18, 20,688.30 and 8,277.06 is: 11,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,991.18 : 20,688.30 = 8,277.06 : x
  2. Step 2: Convert to fraction form
    14,991.18/20,688.30 = 8,277.06/x
  3. Step 3: Cross multiply
    14,991.18x = 20,688.30 × 8,277.06
  4. Step 4: Simplify right side
    14,991.18x = 171,238,300.40
  5. Step 5: Solve for x
    x = 171,238,300.40/14,991.18
  6. Step 6: Final answer
    x = 11,422.60

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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.