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Finding the Fourth Proportional to 14,984.40, 22,492.80 and 8,423.40

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Solution

The fourth proportional to 14,984.40, 22,492.80 and 8,423.40 is: 12,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,984.40 : 22,492.80 = 8,423.40 : x
  2. Step 2: Convert to fraction form
    14,984.40/22,492.80 = 8,423.40/x
  3. Step 3: Cross multiply
    14,984.40x = 22,492.80 × 8,423.40
  4. Step 4: Simplify right side
    14,984.40x = 189,465,851.52
  5. Step 5: Solve for x
    x = 189,465,851.52/14,984.40
  6. Step 6: Final answer
    x = 12,644.21

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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.