Home / 10,423.72-15,638.50-4,188.11

Finding the Fourth Proportional to 10,423.72, 15,638.50 and 4,188.11

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Solution

The fourth proportional to 10,423.72, 15,638.50 and 4,188.11 is: 6,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,423.72 : 15,638.50 = 4,188.11 : x
  2. Step 2: Convert to fraction form
    10,423.72/15,638.50 = 4,188.11/x
  3. Step 3: Cross multiply
    10,423.72x = 15,638.50 × 4,188.11
  4. Step 4: Simplify right side
    10,423.72x = 65,495,680.04
  5. Step 5: Solve for x
    x = 65,495,680.04/10,423.72
  6. Step 6: Final answer
    x = 6,283.33

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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.