Home / 15,405.36-23,110.90-4,878.04

Finding the Fourth Proportional to 15,405.36, 23,110.90 and 4,878.04

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Solution

The fourth proportional to 15,405.36, 23,110.90 and 4,878.04 is: 7,317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,405.36 : 23,110.90 = 4,878.04 : x
  2. Step 2: Convert to fraction form
    15,405.36/23,110.90 = 4,878.04/x
  3. Step 3: Cross multiply
    15,405.36x = 23,110.90 × 4,878.04
  4. Step 4: Simplify right side
    15,405.36x = 112,735,894.64
  5. Step 5: Solve for x
    x = 112,735,894.64/15,405.36
  6. Step 6: Final answer
    x = 7,317.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.