Home / 7,155.10-9,874.47-4,011.76

Finding the Fourth Proportional to 7,155.10, 9,874.47 and 4,011.76

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Solution

The fourth proportional to 7,155.10, 9,874.47 and 4,011.76 is: 5,536.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.10 : 9,874.47 = 4,011.76 : x
  2. Step 2: Convert to fraction form
    7,155.10/9,874.47 = 4,011.76/x
  3. Step 3: Cross multiply
    7,155.10x = 9,874.47 × 4,011.76
  4. Step 4: Simplify right side
    7,155.10x = 39,614,003.77
  5. Step 5: Solve for x
    x = 39,614,003.77/7,155.10
  6. Step 6: Final answer
    x = 5,536.47

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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.