Home / 19,439.11-29,148.98-7,585.79

Finding the Fourth Proportional to 19,439.11, 29,148.98 and 7,585.79

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Solution

The fourth proportional to 19,439.11, 29,148.98 and 7,585.79 is: 11,374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.11 : 29,148.98 = 7,585.79 : x
  2. Step 2: Convert to fraction form
    19,439.11/29,148.98 = 7,585.79/x
  3. Step 3: Cross multiply
    19,439.11x = 29,148.98 × 7,585.79
  4. Step 4: Simplify right side
    19,439.11x = 221,118,075.94
  5. Step 5: Solve for x
    x = 221,118,075.94/19,439.11
  6. Step 6: Final answer
    x = 11,374.91

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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.