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Finding the Fourth Proportional to 8,992.07, 12,411.80 and 5,216.19

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Solution

The fourth proportional to 8,992.07, 12,411.80 and 5,216.19 is: 7,199.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.07 : 12,411.80 = 5,216.19 : x
  2. Step 2: Convert to fraction form
    8,992.07/12,411.80 = 5,216.19/x
  3. Step 3: Cross multiply
    8,992.07x = 12,411.80 × 5,216.19
  4. Step 4: Simplify right side
    8,992.07x = 64,742,307.04
  5. Step 5: Solve for x
    x = 64,742,307.04/8,992.07
  6. Step 6: Final answer
    x = 7,199.93

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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.