Home / 15,184.58-20,954.74-8,470.28

Finding the Fourth Proportional to 15,184.58, 20,954.74 and 8,470.28

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Solution

The fourth proportional to 15,184.58, 20,954.74 and 8,470.28 is: 11,689.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.58 : 20,954.74 = 8,470.28 : x
  2. Step 2: Convert to fraction form
    15,184.58/20,954.74 = 8,470.28/x
  3. Step 3: Cross multiply
    15,184.58x = 20,954.74 × 8,470.28
  4. Step 4: Simplify right side
    15,184.58x = 177,492,515.13
  5. Step 5: Solve for x
    x = 177,492,515.13/15,184.58
  6. Step 6: Final answer
    x = 11,689.00

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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.