Home / 12,710.88-19,065.36-4,390.56

Finding the Fourth Proportional to 12,710.88, 19,065.36 and 4,390.56

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Solution

The fourth proportional to 12,710.88, 19,065.36 and 4,390.56 is: 6,585.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710.88 : 19,065.36 = 4,390.56 : x
  2. Step 2: Convert to fraction form
    12,710.88/19,065.36 = 4,390.56/x
  3. Step 3: Cross multiply
    12,710.88x = 19,065.36 × 4,390.56
  4. Step 4: Simplify right side
    12,710.88x = 83,707,607.00
  5. Step 5: Solve for x
    x = 83,707,607.00/12,710.88
  6. Step 6: Final answer
    x = 6,585.51

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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.