Home / 11,097.32-15,315.01-6,381.50

Finding the Fourth Proportional to 11,097.32, 15,315.01 and 6,381.50

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Solution

The fourth proportional to 11,097.32, 15,315.01 and 6,381.50 is: 8,806.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,097.32 : 15,315.01 = 6,381.50 : x
  2. Step 2: Convert to fraction form
    11,097.32/15,315.01 = 6,381.50/x
  3. Step 3: Cross multiply
    11,097.32x = 15,315.01 × 6,381.50
  4. Step 4: Simplify right side
    11,097.32x = 97,732,643.79
  5. Step 5: Solve for x
    x = 97,732,643.79/11,097.32
  6. Step 6: Final answer
    x = 8,806.87

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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.