Home / 7,918.77-10,929.36-5,089.68

Finding the Fourth Proportional to 7,918.77, 10,929.36 and 5,089.68

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Solution

The fourth proportional to 7,918.77, 10,929.36 and 5,089.68 is: 7,024.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.77 : 10,929.36 = 5,089.68 : x
  2. Step 2: Convert to fraction form
    7,918.77/10,929.36 = 5,089.68/x
  3. Step 3: Cross multiply
    7,918.77x = 10,929.36 × 5,089.68
  4. Step 4: Simplify right side
    7,918.77x = 55,626,945.00
  5. Step 5: Solve for x
    x = 55,626,945.00/7,918.77
  6. Step 6: Final answer
    x = 7,024.70

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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.