Home / 10,421.53-14,379.39-6,170.45

Finding the Fourth Proportional to 10,421.53, 14,379.39 and 6,170.45

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Solution

The fourth proportional to 10,421.53, 14,379.39 and 6,170.45 is: 8,513.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.53 : 14,379.39 = 6,170.45 : x
  2. Step 2: Convert to fraction form
    10,421.53/14,379.39 = 6,170.45/x
  3. Step 3: Cross multiply
    10,421.53x = 14,379.39 × 6,170.45
  4. Step 4: Simplify right side
    10,421.53x = 88,727,235.13
  5. Step 5: Solve for x
    x = 88,727,235.13/10,421.53
  6. Step 6: Final answer
    x = 8,513.84

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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.