Home / 11,990.64-16,557.53-7,522.07

Finding the Fourth Proportional to 11,990.64, 16,557.53 and 7,522.07

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Solution

The fourth proportional to 11,990.64, 16,557.53 and 7,522.07 is: 10,387.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.64 : 16,557.53 = 7,522.07 : x
  2. Step 2: Convert to fraction form
    11,990.64/16,557.53 = 7,522.07/x
  3. Step 3: Cross multiply
    11,990.64x = 16,557.53 × 7,522.07
  4. Step 4: Simplify right side
    11,990.64x = 124,546,779.29
  5. Step 5: Solve for x
    x = 124,546,779.29/11,990.64
  6. Step 6: Final answer
    x = 10,387.00

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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.