Home / 18,579.42-25,646.63-13,569.57

Finding the Fourth Proportional to 18,579.42, 25,646.63 and 13,569.57

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Solution

The fourth proportional to 18,579.42, 25,646.63 and 13,569.57 is: 18,731.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.42 : 25,646.63 = 13,569.57 : x
  2. Step 2: Convert to fraction form
    18,579.42/25,646.63 = 13,569.57/x
  3. Step 3: Cross multiply
    18,579.42x = 25,646.63 × 13,569.57
  4. Step 4: Simplify right side
    18,579.42x = 348,013,673.20
  5. Step 5: Solve for x
    x = 348,013,673.20/18,579.42
  6. Step 6: Final answer
    x = 18,731.14

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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.