Home / 18,667.90-25,752.63-11,948.14

Finding the Fourth Proportional to 18,667.90, 25,752.63 and 11,948.14

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Solution

The fourth proportional to 18,667.90, 25,752.63 and 11,948.14 is: 16,482.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.90 : 25,752.63 = 11,948.14 : x
  2. Step 2: Convert to fraction form
    18,667.90/25,752.63 = 11,948.14/x
  3. Step 3: Cross multiply
    18,667.90x = 25,752.63 × 11,948.14
  4. Step 4: Simplify right side
    18,667.90x = 307,696,028.61
  5. Step 5: Solve for x
    x = 307,696,028.61/18,667.90
  6. Step 6: Final answer
    x = 16,482.63

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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.