Home / 15,164.36-20,929.32-8,875.52

Finding the Fourth Proportional to 15,164.36, 20,929.32 and 8,875.52

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Solution

The fourth proportional to 15,164.36, 20,929.32 and 8,875.52 is: 12,249.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,164.36 : 20,929.32 = 8,875.52 : x
  2. Step 2: Convert to fraction form
    15,164.36/20,929.32 = 8,875.52/x
  3. Step 3: Cross multiply
    15,164.36x = 20,929.32 × 8,875.52
  4. Step 4: Simplify right side
    15,164.36x = 185,758,598.25
  5. Step 5: Solve for x
    x = 185,758,598.25/15,164.36
  6. Step 6: Final answer
    x = 12,249.68

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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.