Home / 10,845.68-16,281.45-6,465.20

Finding the Fourth Proportional to 10,845.68, 16,281.45 and 6,465.20

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Solution

The fourth proportional to 10,845.68, 16,281.45 and 6,465.20 is: 9,705.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,845.68 : 16,281.45 = 6,465.20 : x
  2. Step 2: Convert to fraction form
    10,845.68/16,281.45 = 6,465.20/x
  3. Step 3: Cross multiply
    10,845.68x = 16,281.45 × 6,465.20
  4. Step 4: Simplify right side
    10,845.68x = 105,262,830.54
  5. Step 5: Solve for x
    x = 105,262,830.54/10,845.68
  6. Step 6: Final answer
    x = 9,705.51

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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.