Home / 8,322.52-12,483.36-5,160.28

Finding the Fourth Proportional to 8,322.52, 12,483.36 and 5,160.28

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Solution

The fourth proportional to 8,322.52, 12,483.36 and 5,160.28 is: 7,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.52 : 12,483.36 = 5,160.28 : x
  2. Step 2: Convert to fraction form
    8,322.52/12,483.36 = 5,160.28/x
  3. Step 3: Cross multiply
    8,322.52x = 12,483.36 × 5,160.28
  4. Step 4: Simplify right side
    8,322.52x = 64,417,632.94
  5. Step 5: Solve for x
    x = 64,417,632.94/8,322.52
  6. Step 6: Final answer
    x = 7,740.16

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1.5x scale

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.