Home / 8,709.23-12,018.98-5,124.45

Finding the Fourth Proportional to 8,709.23, 12,018.98 and 5,124.45

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Solution

The fourth proportional to 8,709.23, 12,018.98 and 5,124.45 is: 7,071.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.23 : 12,018.98 = 5,124.45 : x
  2. Step 2: Convert to fraction form
    8,709.23/12,018.98 = 5,124.45/x
  3. Step 3: Cross multiply
    8,709.23x = 12,018.98 × 5,124.45
  4. Step 4: Simplify right side
    8,709.23x = 61,590,636.44
  5. Step 5: Solve for x
    x = 61,590,636.44/8,709.23
  6. Step 6: Final answer
    x = 7,071.88

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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.