Home / 10,359.35-14,369.15-9,985.75

Finding the Fourth Proportional to 10,359.35, 14,369.15 and 9,985.75

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Solution

The fourth proportional to 10,359.35, 14,369.15 and 9,985.75 is: 13,850.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,359.35 : 14,369.15 = 9,985.75 : x
  2. Step 2: Convert to fraction form
    10,359.35/14,369.15 = 9,985.75/x
  3. Step 3: Cross multiply
    10,359.35x = 14,369.15 × 9,985.75
  4. Step 4: Simplify right side
    10,359.35x = 143,486,739.61
  5. Step 5: Solve for x
    x = 143,486,739.61/10,359.35
  6. Step 6: Final answer
    x = 13,850.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.