Home / 8,340.64-11,510.40-4,615.36

Finding the Fourth Proportional to 8,340.64, 11,510.40 and 4,615.36

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Solution

The fourth proportional to 8,340.64, 11,510.40 and 4,615.36 is: 6,369.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.64 : 11,510.40 = 4,615.36 : x
  2. Step 2: Convert to fraction form
    8,340.64/11,510.40 = 4,615.36/x
  3. Step 3: Cross multiply
    8,340.64x = 11,510.40 × 4,615.36
  4. Step 4: Simplify right side
    8,340.64x = 53,124,639.74
  5. Step 5: Solve for x
    x = 53,124,639.74/8,340.64
  6. Step 6: Final answer
    x = 6,369.37

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Half scale
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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.