Home / 6,916.46-10,376.21-1,985.72

Finding the Fourth Proportional to 6,916.46, 10,376.21 and 1,985.72

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Solution

The fourth proportional to 6,916.46, 10,376.21 and 1,985.72 is: 2,979.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.46 : 10,376.21 = 1,985.72 : x
  2. Step 2: Convert to fraction form
    6,916.46/10,376.21 = 1,985.72/x
  3. Step 3: Cross multiply
    6,916.46x = 10,376.21 × 1,985.72
  4. Step 4: Simplify right side
    6,916.46x = 20,604,185.91
  5. Step 5: Solve for x
    x = 20,604,185.91/6,916.46
  6. Step 6: Final answer
    x = 2,979.01

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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.