Home / 10,454.34-15,688.87-4,907.86

Finding the Fourth Proportional to 10,454.34, 15,688.87 and 4,907.86

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Solution

The fourth proportional to 10,454.34, 15,688.87 and 4,907.86 is: 7,365.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,454.34 : 15,688.87 = 4,907.86 : x
  2. Step 2: Convert to fraction form
    10,454.34/15,688.87 = 4,907.86/x
  3. Step 3: Cross multiply
    10,454.34x = 15,688.87 × 4,907.86
  4. Step 4: Simplify right side
    10,454.34x = 76,998,777.52
  5. Step 5: Solve for x
    x = 76,998,777.52/10,454.34
  6. Step 6: Final answer
    x = 7,365.25

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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.