Home / 15,765,193.38-21,763,290.69-9,237,916.92

Finding the Fourth Proportional to 15,765,193.38, 21,763,290.69 and 9,237,916.92

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Solution

The fourth proportional to 15,765,193.38, 21,763,290.69 and 9,237,916.92 is: 12,752,616.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765,193.38 : 21,763,290.69 = 9,237,916.92 : x
  2. Step 2: Convert to fraction form
    15,765,193.38/21,763,290.69 = 9,237,916.92/x
  3. Step 3: Cross multiply
    15,765,193.38x = 21,763,290.69 × 9,237,916.92
  4. Step 4: Simplify right side
    15,765,193.38x = 201,047,471,300,029.50
  5. Step 5: Solve for x
    x = 201,047,471,300,029.50/15,765,193.38
  6. Step 6: Final answer
    x = 12,752,616.89

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Double scale
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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.