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Finding the Fourth Proportional to 7,383.90, 10,242.00 and 7,117.93

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Solution

The fourth proportional to 7,383.90, 10,242.00 and 7,117.93 is: 9,873.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,383.90 : 10,242.00 = 7,117.93 : x
  2. Step 2: Convert to fraction form
    7,383.90/10,242.00 = 7,117.93/x
  3. Step 3: Cross multiply
    7,383.90x = 10,242.00 × 7,117.93
  4. Step 4: Simplify right side
    7,383.90x = 72,901,752.26
  5. Step 5: Solve for x
    x = 72,901,752.26/7,383.90
  6. Step 6: Final answer
    x = 9,873.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.