Home / 8,501.78-11,736.72-5,316.86

Finding the Fourth Proportional to 8,501.78, 11,736.72 and 5,316.86

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Solution

The fourth proportional to 8,501.78, 11,736.72 and 5,316.86 is: 7,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.78 : 11,736.72 = 5,316.86 : x
  2. Step 2: Convert to fraction form
    8,501.78/11,736.72 = 5,316.86/x
  3. Step 3: Cross multiply
    8,501.78x = 11,736.72 × 5,316.86
  4. Step 4: Simplify right side
    8,501.78x = 62,402,497.10
  5. Step 5: Solve for x
    x = 62,402,497.10/8,501.78
  6. Step 6: Final answer
    x = 7,339.93

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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.