Home / 15,033.88-20,746.56-8,319

Finding the Fourth Proportional to 15,033.88, 20,746.56 and 8,319

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Solution

The fourth proportional to 15,033.88, 20,746.56 and 8,319 is: 11,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,033.88 : 20,746.56 = 8,319 : x
  2. Step 2: Convert to fraction form
    15,033.88/20,746.56 = 8,319/x
  3. Step 3: Cross multiply
    15,033.88x = 20,746.56 × 8,319
  4. Step 4: Simplify right side
    15,033.88x = 172,590,632.64
  5. Step 5: Solve for x
    x = 172,590,632.64/15,033.88
  6. Step 6: Final answer
    x = 11,480.11

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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.