Home / 11,116.76-15,341.16-6,148.76

Finding the Fourth Proportional to 11,116.76, 15,341.16 and 6,148.76

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Solution

The fourth proportional to 11,116.76, 15,341.16 and 6,148.76 is: 8,485.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.76 : 15,341.16 = 6,148.76 : x
  2. Step 2: Convert to fraction form
    11,116.76/15,341.16 = 6,148.76/x
  3. Step 3: Cross multiply
    11,116.76x = 15,341.16 × 6,148.76
  4. Step 4: Simplify right side
    11,116.76x = 94,329,110.96
  5. Step 5: Solve for x
    x = 94,329,110.96/11,116.76
  6. Step 6: Final answer
    x = 8,485.31

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Half scale
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Double scale
Find fourth proportional to 11,117.76, 15,342.54 and 6,149.76
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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.