Home / 14,520.60-21,807.30-12,706.20

Finding the Fourth Proportional to 14,520.60, 21,807.30 and 12,706.20

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Solution

The fourth proportional to 14,520.60, 21,807.30 and 12,706.20 is: 19,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.60 : 21,807.30 = 12,706.20 : x
  2. Step 2: Convert to fraction form
    14,520.60/21,807.30 = 12,706.20/x
  3. Step 3: Cross multiply
    14,520.60x = 21,807.30 × 12,706.20
  4. Step 4: Simplify right side
    14,520.60x = 277,087,915.26
  5. Step 5: Solve for x
    x = 277,087,915.26/14,520.60
  6. Step 6: Final answer
    x = 19,082.40

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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.