Home / 15,571.71-21,488.63-8,498.25

Finding the Fourth Proportional to 15,571.71, 21,488.63 and 8,498.25

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Solution

The fourth proportional to 15,571.71, 21,488.63 and 8,498.25 is: 11,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,571.71 : 21,488.63 = 8,498.25 : x
  2. Step 2: Convert to fraction form
    15,571.71/21,488.63 = 8,498.25/x
  3. Step 3: Cross multiply
    15,571.71x = 21,488.63 × 8,498.25
  4. Step 4: Simplify right side
    15,571.71x = 182,615,707.41
  5. Step 5: Solve for x
    x = 182,615,707.41/15,571.71
  6. Step 6: Final answer
    x = 11,727.40

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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.