Home / 7,149.95-9,858.35-6,153.51

Finding the Fourth Proportional to 7,149.95, 9,858.35 and 6,153.51

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Solution

The fourth proportional to 7,149.95, 9,858.35 and 6,153.51 is: 8,484.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.95 : 9,858.35 = 6,153.51 : x
  2. Step 2: Convert to fraction form
    7,149.95/9,858.35 = 6,153.51/x
  3. Step 3: Cross multiply
    7,149.95x = 9,858.35 × 6,153.51
  4. Step 4: Simplify right side
    7,149.95x = 60,663,464.57
  5. Step 5: Solve for x
    x = 60,663,464.57/7,149.95
  6. Step 6: Final answer
    x = 8,484.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.