Home / 10,539.10-15,778.27-6,985.23

Finding the Fourth Proportional to 10,539.10, 15,778.27 and 6,985.23

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Solution

The fourth proportional to 10,539.10, 15,778.27 and 6,985.23 is: 10,457.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,539.10 : 15,778.27 = 6,985.23 : x
  2. Step 2: Convert to fraction form
    10,539.10/15,778.27 = 6,985.23/x
  3. Step 3: Cross multiply
    10,539.10x = 15,778.27 × 6,985.23
  4. Step 4: Simplify right side
    10,539.10x = 110,214,844.95
  5. Step 5: Solve for x
    x = 110,214,844.95/10,539.10
  6. Step 6: Final answer
    x = 10,457.71

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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.