Home / 12,955.38-19,421.78-6,712.08

Finding the Fourth Proportional to 12,955.38, 19,421.78 and 6,712.08

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Solution

The fourth proportional to 12,955.38, 19,421.78 and 6,712.08 is: 10,062.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.38 : 19,421.78 = 6,712.08 : x
  2. Step 2: Convert to fraction form
    12,955.38/19,421.78 = 6,712.08/x
  3. Step 3: Cross multiply
    12,955.38x = 19,421.78 × 6,712.08
  4. Step 4: Simplify right side
    12,955.38x = 130,360,507.54
  5. Step 5: Solve for x
    x = 130,360,507.54/12,955.38
  6. Step 6: Final answer
    x = 10,062.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.