Home / 11,051.01-15,220.80-9,558.99

Finding the Fourth Proportional to 11,051.01, 15,220.80 and 9,558.99

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Solution

The fourth proportional to 11,051.01, 15,220.80 and 9,558.99 is: 13,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,051.01 : 15,220.80 = 9,558.99 : x
  2. Step 2: Convert to fraction form
    11,051.01/15,220.80 = 9,558.99/x
  3. Step 3: Cross multiply
    11,051.01x = 15,220.80 × 9,558.99
  4. Step 4: Simplify right side
    11,051.01x = 145,495,474.99
  5. Step 5: Solve for x
    x = 145,495,474.99/11,051.01
  6. Step 6: Final answer
    x = 13,165.81

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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.