Home / 13,081.02-18,051.72-7,416.84

Finding the Fourth Proportional to 13,081.02, 18,051.72 and 7,416.84

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Solution

The fourth proportional to 13,081.02, 18,051.72 and 7,416.84 is: 10,235.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.02 : 18,051.72 = 7,416.84 : x
  2. Step 2: Convert to fraction form
    13,081.02/18,051.72 = 7,416.84/x
  3. Step 3: Cross multiply
    13,081.02x = 18,051.72 × 7,416.84
  4. Step 4: Simplify right side
    13,081.02x = 133,886,718.96
  5. Step 5: Solve for x
    x = 133,886,718.96/13,081.02
  6. Step 6: Final answer
    x = 10,235.19

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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.