Home / 8,715.21-12,026.96-4,938.37

Finding the Fourth Proportional to 8,715.21, 12,026.96 and 4,938.37

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Solution

The fourth proportional to 8,715.21, 12,026.96 and 4,938.37 is: 6,814.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.21 : 12,026.96 = 4,938.37 : x
  2. Step 2: Convert to fraction form
    8,715.21/12,026.96 = 4,938.37/x
  3. Step 3: Cross multiply
    8,715.21x = 12,026.96 × 4,938.37
  4. Step 4: Simplify right side
    8,715.21x = 59,393,518.32
  5. Step 5: Solve for x
    x = 59,393,518.32/8,715.21
  6. Step 6: Final answer
    x = 6,814.93

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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.