Home / 19,430.16-26,809.80-11,474.88

Finding the Fourth Proportional to 19,430.16, 26,809.80 and 11,474.88

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Solution

The fourth proportional to 19,430.16, 26,809.80 and 11,474.88 is: 15,833.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.16 : 26,809.80 = 11,474.88 : x
  2. Step 2: Convert to fraction form
    19,430.16/26,809.80 = 11,474.88/x
  3. Step 3: Cross multiply
    19,430.16x = 26,809.80 × 11,474.88
  4. Step 4: Simplify right side
    19,430.16x = 307,639,237.82
  5. Step 5: Solve for x
    x = 307,639,237.82/19,430.16
  6. Step 6: Final answer
    x = 15,833.08

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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.