Home / 19,126.65-26,390.45-11,572.79

Finding the Fourth Proportional to 19,126.65, 26,390.45 and 11,572.79

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Solution

The fourth proportional to 19,126.65, 26,390.45 and 11,572.79 is: 15,967.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.65 : 26,390.45 = 11,572.79 : x
  2. Step 2: Convert to fraction form
    19,126.65/26,390.45 = 11,572.79/x
  3. Step 3: Cross multiply
    19,126.65x = 26,390.45 × 11,572.79
  4. Step 4: Simplify right side
    19,126.65x = 305,411,230.76
  5. Step 5: Solve for x
    x = 305,411,230.76/19,126.65
  6. Step 6: Final answer
    x = 15,967.84

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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.