Home / 19,475.69-26,881.95-11,520.68

Finding the Fourth Proportional to 19,475.69, 26,881.95 and 11,520.68

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Solution

The fourth proportional to 19,475.69, 26,881.95 and 11,520.68 is: 15,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,475.69 : 26,881.95 = 11,520.68 : x
  2. Step 2: Convert to fraction form
    19,475.69/26,881.95 = 11,520.68/x
  3. Step 3: Cross multiply
    19,475.69x = 26,881.95 × 11,520.68
  4. Step 4: Simplify right side
    19,475.69x = 309,698,209.32
  5. Step 5: Solve for x
    x = 309,698,209.32/19,475.69
  6. Step 6: Final answer
    x = 15,901.79

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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.