Home / 7,545.20-10,411.84-4,188.16

Finding the Fourth Proportional to 7,545.20, 10,411.84 and 4,188.16

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Solution

The fourth proportional to 7,545.20, 10,411.84 and 4,188.16 is: 5,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,545.20 : 10,411.84 = 4,188.16 : x
  2. Step 2: Convert to fraction form
    7,545.20/10,411.84 = 4,188.16/x
  3. Step 3: Cross multiply
    7,545.20x = 10,411.84 × 4,188.16
  4. Step 4: Simplify right side
    7,545.20x = 43,606,451.81
  5. Step 5: Solve for x
    x = 43,606,451.81/7,545.20
  6. Step 6: Final answer
    x = 5,779.36

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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.