Home / 7,415.52-11,123.28-3,031.76

Finding the Fourth Proportional to 7,415.52, 11,123.28 and 3,031.76

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Solution

The fourth proportional to 7,415.52, 11,123.28 and 3,031.76 is: 4,547.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.52 : 11,123.28 = 3,031.76 : x
  2. Step 2: Convert to fraction form
    7,415.52/11,123.28 = 3,031.76/x
  3. Step 3: Cross multiply
    7,415.52x = 11,123.28 × 3,031.76
  4. Step 4: Simplify right side
    7,415.52x = 33,723,115.37
  5. Step 5: Solve for x
    x = 33,723,115.37/7,415.52
  6. Step 6: Final answer
    x = 4,547.64

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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.