Home / 10,399.31-14,357.40-6,768.81

Finding the Fourth Proportional to 10,399.31, 14,357.40 and 6,768.81

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Solution

The fourth proportional to 10,399.31, 14,357.40 and 6,768.81 is: 9,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.31 : 14,357.40 = 6,768.81 : x
  2. Step 2: Convert to fraction form
    10,399.31/14,357.40 = 6,768.81/x
  3. Step 3: Cross multiply
    10,399.31x = 14,357.40 × 6,768.81
  4. Step 4: Simplify right side
    10,399.31x = 97,182,512.69
  5. Step 5: Solve for x
    x = 97,182,512.69/10,399.31
  6. Step 6: Final answer
    x = 9,345.10

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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.