Home / 19,159.12-26,438.16-10,774

Finding the Fourth Proportional to 19,159.12, 26,438.16 and 10,774

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Solution

The fourth proportional to 19,159.12, 26,438.16 and 10,774 is: 14,867.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159.12 : 26,438.16 = 10,774 : x
  2. Step 2: Convert to fraction form
    19,159.12/26,438.16 = 10,774/x
  3. Step 3: Cross multiply
    19,159.12x = 26,438.16 × 10,774
  4. Step 4: Simplify right side
    19,159.12x = 284,844,735.84
  5. Step 5: Solve for x
    x = 284,844,735.84/19,159.12
  6. Step 6: Final answer
    x = 14,867.32

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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.