Home / 12,307.19-18,364.74-10,981.83

Finding the Fourth Proportional to 12,307.19, 18,364.74 and 10,981.83

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Solution

The fourth proportional to 12,307.19, 18,364.74 and 10,981.83 is: 16,387.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.19 : 18,364.74 = 10,981.83 : x
  2. Step 2: Convert to fraction form
    12,307.19/18,364.74 = 10,981.83/x
  3. Step 3: Cross multiply
    12,307.19x = 18,364.74 × 10,981.83
  4. Step 4: Simplify right side
    12,307.19x = 201,678,388.31
  5. Step 5: Solve for x
    x = 201,678,388.31/12,307.19
  6. Step 6: Final answer
    x = 16,387.04

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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.