Home / 15,639.50-21,582.52-8,566.18

Finding the Fourth Proportional to 15,639.50, 21,582.52 and 8,566.18

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Solution

The fourth proportional to 15,639.50, 21,582.52 and 8,566.18 is: 11,821.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.50 : 21,582.52 = 8,566.18 : x
  2. Step 2: Convert to fraction form
    15,639.50/21,582.52 = 8,566.18/x
  3. Step 3: Cross multiply
    15,639.50x = 21,582.52 × 8,566.18
  4. Step 4: Simplify right side
    15,639.50x = 184,879,751.17
  5. Step 5: Solve for x
    x = 184,879,751.17/15,639.50
  6. Step 6: Final answer
    x = 11,821.33

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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.