Home / 9,148.77-12,612.38-6,495.21

Finding the Fourth Proportional to 9,148.77, 12,612.38 and 6,495.21

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Solution

The fourth proportional to 9,148.77, 12,612.38 and 6,495.21 is: 8,954.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.77 : 12,612.38 = 6,495.21 : x
  2. Step 2: Convert to fraction form
    9,148.77/12,612.38 = 6,495.21/x
  3. Step 3: Cross multiply
    9,148.77x = 12,612.38 × 6,495.21
  4. Step 4: Simplify right side
    9,148.77x = 81,920,024.22
  5. Step 5: Solve for x
    x = 81,920,024.22/9,148.77
  6. Step 6: Final answer
    x = 8,954.21

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Half scale
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Double scale
Find fourth proportional to 9,149.77, 12,613.75 and 6,496.21
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.