Home / 8,466.40-12,685.20-5,384.80

Finding the Fourth Proportional to 8,466.40, 12,685.20 and 5,384.80

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Solution

The fourth proportional to 8,466.40, 12,685.20 and 5,384.80 is: 8,068.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466.40 : 12,685.20 = 5,384.80 : x
  2. Step 2: Convert to fraction form
    8,466.40/12,685.20 = 5,384.80/x
  3. Step 3: Cross multiply
    8,466.40x = 12,685.20 × 5,384.80
  4. Step 4: Simplify right side
    8,466.40x = 68,307,264.96
  5. Step 5: Solve for x
    x = 68,307,264.96/8,466.40
  6. Step 6: Final answer
    x = 8,068.04

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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.