Home / 9,386.04-12,923.82-8,336.28

Finding the Fourth Proportional to 9,386.04, 12,923.82 and 8,336.28

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Solution

The fourth proportional to 9,386.04, 12,923.82 and 8,336.28 is: 11,478.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,386.04 : 12,923.82 = 8,336.28 : x
  2. Step 2: Convert to fraction form
    9,386.04/12,923.82 = 8,336.28/x
  3. Step 3: Cross multiply
    9,386.04x = 12,923.82 × 8,336.28
  4. Step 4: Simplify right side
    9,386.04x = 107,736,582.19
  5. Step 5: Solve for x
    x = 107,736,582.19/9,386.04
  6. Step 6: Final answer
    x = 11,478.39

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Double scale
Find fourth proportional to 9,387.04, 12,925.20 and 8,337.28
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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.