Home / 10,790.72-14,891.18-6,315.32

Finding the Fourth Proportional to 10,790.72, 14,891.18 and 6,315.32

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Solution

The fourth proportional to 10,790.72, 14,891.18 and 6,315.32 is: 8,715.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.72 : 14,891.18 = 6,315.32 : x
  2. Step 2: Convert to fraction form
    10,790.72/14,891.18 = 6,315.32/x
  3. Step 3: Cross multiply
    10,790.72x = 14,891.18 × 6,315.32
  4. Step 4: Simplify right side
    10,790.72x = 94,042,619.89
  5. Step 5: Solve for x
    x = 94,042,619.89/10,790.72
  6. Step 6: Final answer
    x = 8,715.14

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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.