Home / 10,420.19-15,630.29-4,576.85

Finding the Fourth Proportional to 10,420.19, 15,630.29 and 4,576.85

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Solution

The fourth proportional to 10,420.19, 15,630.29 and 4,576.85 is: 6,865.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.19 : 15,630.29 = 4,576.85 : x
  2. Step 2: Convert to fraction form
    10,420.19/15,630.29 = 4,576.85/x
  3. Step 3: Cross multiply
    10,420.19x = 15,630.29 × 4,576.85
  4. Step 4: Simplify right side
    10,420.19x = 71,537,492.79
  5. Step 5: Solve for x
    x = 71,537,492.79/10,420.19
  6. Step 6: Final answer
    x = 6,865.28

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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.