Home / 15,485.86-21,373.88-10,181.17

Finding the Fourth Proportional to 15,485.86, 21,373.88 and 10,181.17

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Solution

The fourth proportional to 15,485.86, 21,373.88 and 10,181.17 is: 14,052.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,485.86 : 21,373.88 = 10,181.17 : x
  2. Step 2: Convert to fraction form
    15,485.86/21,373.88 = 10,181.17/x
  3. Step 3: Cross multiply
    15,485.86x = 21,373.88 × 10,181.17
  4. Step 4: Simplify right side
    15,485.86x = 217,611,138.92
  5. Step 5: Solve for x
    x = 217,611,138.92/15,485.86
  6. Step 6: Final answer
    x = 14,052.25

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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.