Home / 13,036.24-17,980.45-8,558.35

Finding the Fourth Proportional to 13,036.24, 17,980.45 and 8,558.35

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Solution

The fourth proportional to 13,036.24, 17,980.45 and 8,558.35 is: 11,804.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.24 : 17,980.45 = 8,558.35 : x
  2. Step 2: Convert to fraction form
    13,036.24/17,980.45 = 8,558.35/x
  3. Step 3: Cross multiply
    13,036.24x = 17,980.45 × 8,558.35
  4. Step 4: Simplify right side
    13,036.24x = 153,882,986.42
  5. Step 5: Solve for x
    x = 153,882,986.42/13,036.24
  6. Step 6: Final answer
    x = 11,804.25

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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.