Home / 19,559.07-29,338.47-7,872.12

Finding the Fourth Proportional to 19,559.07, 29,338.47 and 7,872.12

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Solution

The fourth proportional to 19,559.07, 29,338.47 and 7,872.12 is: 11,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,559.07 : 29,338.47 = 7,872.12 : x
  2. Step 2: Convert to fraction form
    19,559.07/29,338.47 = 7,872.12/x
  3. Step 3: Cross multiply
    19,559.07x = 29,338.47 × 7,872.12
  4. Step 4: Simplify right side
    19,559.07x = 230,955,956.46
  5. Step 5: Solve for x
    x = 230,955,956.46/19,559.07
  6. Step 6: Final answer
    x = 11,808.13

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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.