Home / 15,723.61-21,707.54-10,425.59

Finding the Fourth Proportional to 15,723.61, 21,707.54 and 10,425.59

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Solution

The fourth proportional to 15,723.61, 21,707.54 and 10,425.59 is: 14,393.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,723.61 : 21,707.54 = 10,425.59 : x
  2. Step 2: Convert to fraction form
    15,723.61/21,707.54 = 10,425.59/x
  3. Step 3: Cross multiply
    15,723.61x = 21,707.54 × 10,425.59
  4. Step 4: Simplify right side
    15,723.61x = 226,313,911.95
  5. Step 5: Solve for x
    x = 226,313,911.95/15,723.61
  6. Step 6: Final answer
    x = 14,393.25

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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.