Home / 19,287.75-26,615.84-10,788.40

Finding the Fourth Proportional to 19,287.75, 26,615.84 and 10,788.40

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Solution

The fourth proportional to 19,287.75, 26,615.84 and 10,788.40 is: 14,887.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.75 : 26,615.84 = 10,788.40 : x
  2. Step 2: Convert to fraction form
    19,287.75/26,615.84 = 10,788.40/x
  3. Step 3: Cross multiply
    19,287.75x = 26,615.84 × 10,788.40
  4. Step 4: Simplify right side
    19,287.75x = 287,142,141.23
  5. Step 5: Solve for x
    x = 287,142,141.23/19,287.75
  6. Step 6: Final answer
    x = 14,887.28

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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.