Home / 10,528.57-15,780.55-5,847.49

Finding the Fourth Proportional to 10,528.57, 15,780.55 and 5,847.49

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Solution

The fourth proportional to 10,528.57, 15,780.55 and 5,847.49 is: 8,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.57 : 15,780.55 = 5,847.49 : x
  2. Step 2: Convert to fraction form
    10,528.57/15,780.55 = 5,847.49/x
  3. Step 3: Cross multiply
    10,528.57x = 15,780.55 × 5,847.49
  4. Step 4: Simplify right side
    10,528.57x = 92,276,608.32
  5. Step 5: Solve for x
    x = 92,276,608.32/10,528.57
  6. Step 6: Final answer
    x = 8,764.40

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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.