Home / 12,386.50-18,582.18-5,461

Finding the Fourth Proportional to 12,386.50, 18,582.18 and 5,461

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Solution

The fourth proportional to 12,386.50, 18,582.18 and 5,461 is: 8,192.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.50 : 18,582.18 = 5,461 : x
  2. Step 2: Convert to fraction form
    12,386.50/18,582.18 = 5,461/x
  3. Step 3: Cross multiply
    12,386.50x = 18,582.18 × 5,461
  4. Step 4: Simplify right side
    12,386.50x = 101,477,284.98
  5. Step 5: Solve for x
    x = 101,477,284.98/12,386.50
  6. Step 6: Final answer
    x = 8,192.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.