Home / 15,335.96-22,890.14-13,218.51

Finding the Fourth Proportional to 15,335.96, 22,890.14 and 13,218.51

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Solution

The fourth proportional to 15,335.96, 22,890.14 and 13,218.51 is: 19,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,335.96 : 22,890.14 = 13,218.51 : x
  2. Step 2: Convert to fraction form
    15,335.96/22,890.14 = 13,218.51/x
  3. Step 3: Cross multiply
    15,335.96x = 22,890.14 × 13,218.51
  4. Step 4: Simplify right side
    15,335.96x = 302,573,478.40
  5. Step 5: Solve for x
    x = 302,573,478.40/15,335.96
  6. Step 6: Final answer
    x = 19,729.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.