Home / 12,148.16-18,211.30-4,355.15

Finding the Fourth Proportional to 12,148.16, 18,211.30 and 4,355.15

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Solution

The fourth proportional to 12,148.16, 18,211.30 and 4,355.15 is: 6,528.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.16 : 18,211.30 = 4,355.15 : x
  2. Step 2: Convert to fraction form
    12,148.16/18,211.30 = 4,355.15/x
  3. Step 3: Cross multiply
    12,148.16x = 18,211.30 × 4,355.15
  4. Step 4: Simplify right side
    12,148.16x = 79,312,841.25
  5. Step 5: Solve for x
    x = 79,312,841.25/12,148.16
  6. Step 6: Final answer
    x = 6,528.80

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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.