Home / 8,929.63-12,322.79-5,152.75

Finding the Fourth Proportional to 8,929.63, 12,322.79 and 5,152.75

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Solution

The fourth proportional to 8,929.63, 12,322.79 and 5,152.75 is: 7,110.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.63 : 12,322.79 = 5,152.75 : x
  2. Step 2: Convert to fraction form
    8,929.63/12,322.79 = 5,152.75/x
  3. Step 3: Cross multiply
    8,929.63x = 12,322.79 × 5,152.75
  4. Step 4: Simplify right side
    8,929.63x = 63,496,256.17
  5. Step 5: Solve for x
    x = 63,496,256.17/8,929.63
  6. Step 6: Final answer
    x = 7,110.74

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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.