Home / 15,639.03-21,582.03-8,925.55

Finding the Fourth Proportional to 15,639.03, 21,582.03 and 8,925.55

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Solution

The fourth proportional to 15,639.03, 21,582.03 and 8,925.55 is: 12,317.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.03 : 21,582.03 = 8,925.55 : x
  2. Step 2: Convert to fraction form
    15,639.03/21,582.03 = 8,925.55/x
  3. Step 3: Cross multiply
    15,639.03x = 21,582.03 × 8,925.55
  4. Step 4: Simplify right side
    15,639.03x = 192,631,487.87
  5. Step 5: Solve for x
    x = 192,631,487.87/15,639.03
  6. Step 6: Final answer
    x = 12,317.36

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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.