Home / 15,678.36-23,522.67-5,818.50

Finding the Fourth Proportional to 15,678.36, 23,522.67 and 5,818.50

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Solution

The fourth proportional to 15,678.36, 23,522.67 and 5,818.50 is: 8,729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.36 : 23,522.67 = 5,818.50 : x
  2. Step 2: Convert to fraction form
    15,678.36/23,522.67 = 5,818.50/x
  3. Step 3: Cross multiply
    15,678.36x = 23,522.67 × 5,818.50
  4. Step 4: Simplify right side
    15,678.36x = 136,866,655.40
  5. Step 5: Solve for x
    x = 136,866,655.40/15,678.36
  6. Step 6: Final answer
    x = 8,729.65

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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.