Home / 15,660.68-21,597.06-12,484.51

Finding the Fourth Proportional to 15,660.68, 21,597.06 and 12,484.51

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Solution

The fourth proportional to 15,660.68, 21,597.06 and 12,484.51 is: 17,216.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660.68 : 21,597.06 = 12,484.51 : x
  2. Step 2: Convert to fraction form
    15,660.68/21,597.06 = 12,484.51/x
  3. Step 3: Cross multiply
    15,660.68x = 21,597.06 × 12,484.51
  4. Step 4: Simplify right side
    15,660.68x = 269,628,711.54
  5. Step 5: Solve for x
    x = 269,628,711.54/15,660.68
  6. Step 6: Final answer
    x = 17,216.92

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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.