Home / 7,155.54-9,875.14-4,011.92

Finding the Fourth Proportional to 7,155.54, 9,875.14 and 4,011.92

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Solution

The fourth proportional to 7,155.54, 9,875.14 and 4,011.92 is: 5,536.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.54 : 9,875.14 = 4,011.92 : x
  2. Step 2: Convert to fraction form
    7,155.54/9,875.14 = 4,011.92/x
  3. Step 3: Cross multiply
    7,155.54x = 9,875.14 × 4,011.92
  4. Step 4: Simplify right side
    7,155.54x = 39,618,271.67
  5. Step 5: Solve for x
    x = 39,618,271.67/7,155.54
  6. Step 6: Final answer
    x = 5,536.73

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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.