Home / 12,943.56-19,412.14-5,547.18

Finding the Fourth Proportional to 12,943.56, 19,412.14 and 5,547.18

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Solution

The fourth proportional to 12,943.56, 19,412.14 and 5,547.18 is: 8,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.56 : 19,412.14 = 5,547.18 : x
  2. Step 2: Convert to fraction form
    12,943.56/19,412.14 = 5,547.18/x
  3. Step 3: Cross multiply
    12,943.56x = 19,412.14 × 5,547.18
  4. Step 4: Simplify right side
    12,943.56x = 107,682,704.09
  5. Step 5: Solve for x
    x = 107,682,704.09/12,943.56
  6. Step 6: Final answer
    x = 8,319.40

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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.