Home / 8,946.21-12,345.81-5,590.97

Finding the Fourth Proportional to 8,946.21, 12,345.81 and 5,590.97

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Solution

The fourth proportional to 8,946.21, 12,345.81 and 5,590.97 is: 7,715.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946.21 : 12,345.81 = 5,590.97 : x
  2. Step 2: Convert to fraction form
    8,946.21/12,345.81 = 5,590.97/x
  3. Step 3: Cross multiply
    8,946.21x = 12,345.81 × 5,590.97
  4. Step 4: Simplify right side
    8,946.21x = 69,025,053.34
  5. Step 5: Solve for x
    x = 69,025,053.34/8,946.21
  6. Step 6: Final answer
    x = 7,715.56

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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.