Home / 15,144.06-20,888.91-11,956.32

Finding the Fourth Proportional to 15,144.06, 20,888.91 and 11,956.32

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Solution

The fourth proportional to 15,144.06, 20,888.91 and 11,956.32 is: 16,491.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,144.06 : 20,888.91 = 11,956.32 : x
  2. Step 2: Convert to fraction form
    15,144.06/20,888.91 = 11,956.32/x
  3. Step 3: Cross multiply
    15,144.06x = 20,888.91 × 11,956.32
  4. Step 4: Simplify right side
    15,144.06x = 249,754,492.41
  5. Step 5: Solve for x
    x = 249,754,492.41/15,144.06
  6. Step 6: Final answer
    x = 16,491.91

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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.