Home / 13,878.17-19,151.48-7,590.41

Finding the Fourth Proportional to 13,878.17, 19,151.48 and 7,590.41

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Solution

The fourth proportional to 13,878.17, 19,151.48 and 7,590.41 is: 10,474.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878.17 : 19,151.48 = 7,590.41 : x
  2. Step 2: Convert to fraction form
    13,878.17/19,151.48 = 7,590.41/x
  3. Step 3: Cross multiply
    13,878.17x = 19,151.48 × 7,590.41
  4. Step 4: Simplify right side
    13,878.17x = 145,367,585.31
  5. Step 5: Solve for x
    x = 145,367,585.31/13,878.17
  6. Step 6: Final answer
    x = 10,474.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.