Home / 10,985.40-16,453.80-9,754.20

Finding the Fourth Proportional to 10,985.40, 16,453.80 and 9,754.20

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Solution

The fourth proportional to 10,985.40, 16,453.80 and 9,754.20 is: 14,609.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.40 : 16,453.80 = 9,754.20 : x
  2. Step 2: Convert to fraction form
    10,985.40/16,453.80 = 9,754.20/x
  3. Step 3: Cross multiply
    10,985.40x = 16,453.80 × 9,754.20
  4. Step 4: Simplify right side
    10,985.40x = 160,493,655.96
  5. Step 5: Solve for x
    x = 160,493,655.96/10,985.40
  6. Step 6: Final answer
    x = 14,609.72

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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.