Home / 11,378.07-15,697.11-6,894.05

Finding the Fourth Proportional to 11,378.07, 15,697.11 and 6,894.05

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Solution

The fourth proportional to 11,378.07, 15,697.11 and 6,894.05 is: 9,510.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.07 : 15,697.11 = 6,894.05 : x
  2. Step 2: Convert to fraction form
    11,378.07/15,697.11 = 6,894.05/x
  3. Step 3: Cross multiply
    11,378.07x = 15,697.11 × 6,894.05
  4. Step 4: Simplify right side
    11,378.07x = 108,216,582.71
  5. Step 5: Solve for x
    x = 108,216,582.71/11,378.07
  6. Step 6: Final answer
    x = 9,510.98

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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.