Home / 8,913.12-13,368.40-2,756.32

Finding the Fourth Proportional to 8,913.12, 13,368.40 and 2,756.32

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Solution

The fourth proportional to 8,913.12, 13,368.40 and 2,756.32 is: 4,134.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.12 : 13,368.40 = 2,756.32 : x
  2. Step 2: Convert to fraction form
    8,913.12/13,368.40 = 2,756.32/x
  3. Step 3: Cross multiply
    8,913.12x = 13,368.40 × 2,756.32
  4. Step 4: Simplify right side
    8,913.12x = 36,847,588.29
  5. Step 5: Solve for x
    x = 36,847,588.29/8,913.12
  6. Step 6: Final answer
    x = 4,134.08

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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.