Home / 10,501.88-15,739.99-4,947.84

Finding the Fourth Proportional to 10,501.88, 15,739.99 and 4,947.84

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Solution

The fourth proportional to 10,501.88, 15,739.99 and 4,947.84 is: 7,415.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,501.88 : 15,739.99 = 4,947.84 : x
  2. Step 2: Convert to fraction form
    10,501.88/15,739.99 = 4,947.84/x
  3. Step 3: Cross multiply
    10,501.88x = 15,739.99 × 4,947.84
  4. Step 4: Simplify right side
    10,501.88x = 77,878,939.75
  5. Step 5: Solve for x
    x = 77,878,939.75/10,501.88
  6. Step 6: Final answer
    x = 7,415.72

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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.