Home / 15,708.24-21,664.40-10,664.19

Finding the Fourth Proportional to 15,708.24, 21,664.40 and 10,664.19

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Solution

The fourth proportional to 15,708.24, 21,664.40 and 10,664.19 is: 14,707.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.24 : 21,664.40 = 10,664.19 : x
  2. Step 2: Convert to fraction form
    15,708.24/21,664.40 = 10,664.19/x
  3. Step 3: Cross multiply
    15,708.24x = 21,664.40 × 10,664.19
  4. Step 4: Simplify right side
    15,708.24x = 231,033,224.52
  5. Step 5: Solve for x
    x = 231,033,224.52/15,708.24
  6. Step 6: Final answer
    x = 14,707.77

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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.