Home / 18,323.89-25,307.68-12,345.17

Finding the Fourth Proportional to 18,323.89, 25,307.68 and 12,345.17

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Solution

The fourth proportional to 18,323.89, 25,307.68 and 12,345.17 is: 17,050.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.89 : 25,307.68 = 12,345.17 : x
  2. Step 2: Convert to fraction form
    18,323.89/25,307.68 = 12,345.17/x
  3. Step 3: Cross multiply
    18,323.89x = 25,307.68 × 12,345.17
  4. Step 4: Simplify right side
    18,323.89x = 312,427,644.31
  5. Step 5: Solve for x
    x = 312,427,644.31/18,323.89
  6. Step 6: Final answer
    x = 17,050.29

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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.