Home / 15,999.18-22,078.74-8,925.58

Finding the Fourth Proportional to 15,999.18, 22,078.74 and 8,925.58

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Solution

The fourth proportional to 15,999.18, 22,078.74 and 8,925.58 is: 12,317.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.18 : 22,078.74 = 8,925.58 : x
  2. Step 2: Convert to fraction form
    15,999.18/22,078.74 = 8,925.58/x
  3. Step 3: Cross multiply
    15,999.18x = 22,078.74 × 8,925.58
  4. Step 4: Simplify right side
    15,999.18x = 197,065,560.17
  5. Step 5: Solve for x
    x = 197,065,560.17/15,999.18
  6. Step 6: Final answer
    x = 12,317.23

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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.