Home / 10,678.77-14,733.45-6,699.78

Finding the Fourth Proportional to 10,678.77, 14,733.45 and 6,699.78

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Solution

The fourth proportional to 10,678.77, 14,733.45 and 6,699.78 is: 9,243.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.77 : 14,733.45 = 6,699.78 : x
  2. Step 2: Convert to fraction form
    10,678.77/14,733.45 = 6,699.78/x
  3. Step 3: Cross multiply
    10,678.77x = 14,733.45 × 6,699.78
  4. Step 4: Simplify right side
    10,678.77x = 98,710,873.64
  5. Step 5: Solve for x
    x = 98,710,873.64/10,678.77
  6. Step 6: Final answer
    x = 9,243.66

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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.