Home / 8,341.81-11,485.47-7,080.24

Finding the Fourth Proportional to 8,341.81, 11,485.47 and 7,080.24

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Solution

The fourth proportional to 8,341.81, 11,485.47 and 7,080.24 is: 9,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,341.81 : 11,485.47 = 7,080.24 : x
  2. Step 2: Convert to fraction form
    8,341.81/11,485.47 = 7,080.24/x
  3. Step 3: Cross multiply
    8,341.81x = 11,485.47 × 7,080.24
  4. Step 4: Simplify right side
    8,341.81x = 81,319,884.11
  5. Step 5: Solve for x
    x = 81,319,884.11/8,341.81
  6. Step 6: Final answer
    x = 9,748.47

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Half scale
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Double scale
Find fourth proportional to 8,342.81, 11,486.85 and 7,081.24
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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.