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Finding the Fourth Proportional to 10,999.70, 15,181.79 and 6,525.93

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Solution

The fourth proportional to 10,999.70, 15,181.79 and 6,525.93 is: 9,007.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.70 : 15,181.79 = 6,525.93 : x
  2. Step 2: Convert to fraction form
    10,999.70/15,181.79 = 6,525.93/x
  3. Step 3: Cross multiply
    10,999.70x = 15,181.79 × 6,525.93
  4. Step 4: Simplify right side
    10,999.70x = 99,075,266.19
  5. Step 5: Solve for x
    x = 99,075,266.19/10,999.70
  6. Step 6: Final answer
    x = 9,007.09

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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.