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Finding the Fourth Proportional to 7,671.06, 11,437.50 and 7,479.70

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Solution

The fourth proportional to 7,671.06, 11,437.50 and 7,479.70 is: 11,152.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.06 : 11,437.50 = 7,479.70 : x
  2. Step 2: Convert to fraction form
    7,671.06/11,437.50 = 7,479.70/x
  3. Step 3: Cross multiply
    7,671.06x = 11,437.50 × 7,479.70
  4. Step 4: Simplify right side
    7,671.06x = 85,549,068.75
  5. Step 5: Solve for x
    x = 85,549,068.75/7,671.06
  6. Step 6: Final answer
    x = 11,152.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.