Home / 10,985.40-16,436.94-6,526.74

Finding the Fourth Proportional to 10,985.40, 16,436.94 and 6,526.74

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Solution

The fourth proportional to 10,985.40, 16,436.94 and 6,526.74 is: 9,765.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.40 : 16,436.94 = 6,526.74 : x
  2. Step 2: Convert to fraction form
    10,985.40/16,436.94 = 6,526.74/x
  3. Step 3: Cross multiply
    10,985.40x = 16,436.94 × 6,526.74
  4. Step 4: Simplify right side
    10,985.40x = 107,279,633.78
  5. Step 5: Solve for x
    x = 107,279,633.78/10,985.40
  6. Step 6: Final answer
    x = 9,765.66

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1.5x scale

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.