Home / 16,520.64-24,735.60-12,506.40

Finding the Fourth Proportional to 16,520.64, 24,735.60 and 12,506.40

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Solution

The fourth proportional to 16,520.64, 24,735.60 and 12,506.40 is: 18,725.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,520.64 : 24,735.60 = 12,506.40 : x
  2. Step 2: Convert to fraction form
    16,520.64/24,735.60 = 12,506.40/x
  3. Step 3: Cross multiply
    16,520.64x = 24,735.60 × 12,506.40
  4. Step 4: Simplify right side
    16,520.64x = 309,353,307.84
  5. Step 5: Solve for x
    x = 309,353,307.84/16,520.64
  6. Step 6: Final answer
    x = 18,725.26

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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.