Home / 10,789.98-14,891.31-6,315.18

Finding the Fourth Proportional to 10,789.98, 14,891.31 and 6,315.18

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Solution

The fourth proportional to 10,789.98, 14,891.31 and 6,315.18 is: 8,715.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,789.98 : 14,891.31 = 6,315.18 : x
  2. Step 2: Convert to fraction form
    10,789.98/14,891.31 = 6,315.18/x
  3. Step 3: Cross multiply
    10,789.98x = 14,891.31 × 6,315.18
  4. Step 4: Simplify right side
    10,789.98x = 94,041,303.09
  5. Step 5: Solve for x
    x = 94,041,303.09/10,789.98
  6. Step 6: Final answer
    x = 8,715.61

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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.