Home / 7,780.08-11,651.40-4,854.72

Finding the Fourth Proportional to 7,780.08, 11,651.40 and 4,854.72

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Solution

The fourth proportional to 7,780.08, 11,651.40 and 4,854.72 is: 7,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.08 : 11,651.40 = 4,854.72 : x
  2. Step 2: Convert to fraction form
    7,780.08/11,651.40 = 4,854.72/x
  3. Step 3: Cross multiply
    7,780.08x = 11,651.40 × 4,854.72
  4. Step 4: Simplify right side
    7,780.08x = 56,564,284.61
  5. Step 5: Solve for x
    x = 56,564,284.61/7,780.08
  6. Step 6: Final answer
    x = 7,270.40

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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.