Home / 10,345.94-14,260.80-6,987.68

Finding the Fourth Proportional to 10,345.94, 14,260.80 and 6,987.68

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Solution

The fourth proportional to 10,345.94, 14,260.80 and 6,987.68 is: 9,631.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.94 : 14,260.80 = 6,987.68 : x
  2. Step 2: Convert to fraction form
    10,345.94/14,260.80 = 6,987.68/x
  3. Step 3: Cross multiply
    10,345.94x = 14,260.80 × 6,987.68
  4. Step 4: Simplify right side
    10,345.94x = 99,649,942.60
  5. Step 5: Solve for x
    x = 99,649,942.60/10,345.94
  6. Step 6: Final answer
    x = 9,631.79

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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.