Home / 7,917.54-11,865.36-6,875.06

Finding the Fourth Proportional to 7,917.54, 11,865.36 and 6,875.06

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Solution

The fourth proportional to 7,917.54, 11,865.36 and 6,875.06 is: 10,303.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.54 : 11,865.36 = 6,875.06 : x
  2. Step 2: Convert to fraction form
    7,917.54/11,865.36 = 6,875.06/x
  3. Step 3: Cross multiply
    7,917.54x = 11,865.36 × 6,875.06
  4. Step 4: Simplify right side
    7,917.54x = 81,575,061.92
  5. Step 5: Solve for x
    x = 81,575,061.92/7,917.54
  6. Step 6: Final answer
    x = 10,303.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.