Home / 15,639.60-21,582.96-8,566.03

Finding the Fourth Proportional to 15,639.60, 21,582.96 and 8,566.03

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Solution

The fourth proportional to 15,639.60, 21,582.96 and 8,566.03 is: 11,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.60 : 21,582.96 = 8,566.03 : x
  2. Step 2: Convert to fraction form
    15,639.60/21,582.96 = 8,566.03/x
  3. Step 3: Cross multiply
    15,639.60x = 21,582.96 × 8,566.03
  4. Step 4: Simplify right side
    15,639.60x = 184,880,174.93
  5. Step 5: Solve for x
    x = 184,880,174.93/15,639.60
  6. Step 6: Final answer
    x = 11,821.29

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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.