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Finding the Fourth Proportional to 12,363.48, 17,059.68 and 7,890.93

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Solution

The fourth proportional to 12,363.48, 17,059.68 and 7,890.93 is: 10,888.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363.48 : 17,059.68 = 7,890.93 : x
  2. Step 2: Convert to fraction form
    12,363.48/17,059.68 = 7,890.93/x
  3. Step 3: Cross multiply
    12,363.48x = 17,059.68 × 7,890.93
  4. Step 4: Simplify right side
    12,363.48x = 134,616,740.70
  5. Step 5: Solve for x
    x = 134,616,740.70/12,363.48
  6. Step 6: Final answer
    x = 10,888.26

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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.