Home / 10,790.47-14,890.84-6,315.07

Finding the Fourth Proportional to 10,790.47, 14,890.84 and 6,315.07

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Solution

The fourth proportional to 10,790.47, 14,890.84 and 6,315.07 is: 8,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.47 : 14,890.84 = 6,315.07 : x
  2. Step 2: Convert to fraction form
    10,790.47/14,890.84 = 6,315.07/x
  3. Step 3: Cross multiply
    10,790.47x = 14,890.84 × 6,315.07
  4. Step 4: Simplify right side
    10,790.47x = 94,036,696.96
  5. Step 5: Solve for x
    x = 94,036,696.96/10,790.47
  6. Step 6: Final answer
    x = 8,714.80

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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.