Home / 10,762.40-16,139.44-4,187.76

Finding the Fourth Proportional to 10,762.40, 16,139.44 and 4,187.76

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Solution

The fourth proportional to 10,762.40, 16,139.44 and 4,187.76 is: 6,280.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,762.40 : 16,139.44 = 4,187.76 : x
  2. Step 2: Convert to fraction form
    10,762.40/16,139.44 = 4,187.76/x
  3. Step 3: Cross multiply
    10,762.40x = 16,139.44 × 4,187.76
  4. Step 4: Simplify right side
    10,762.40x = 67,588,101.25
  5. Step 5: Solve for x
    x = 67,588,101.25/10,762.40
  6. Step 6: Final answer
    x = 6,280.02

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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.