Home / 15,266.13-21,065.53-8,894.06

Finding the Fourth Proportional to 15,266.13, 21,065.53 and 8,894.06

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Solution

The fourth proportional to 15,266.13, 21,065.53 and 8,894.06 is: 12,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266.13 : 21,065.53 = 8,894.06 : x
  2. Step 2: Convert to fraction form
    15,266.13/21,065.53 = 8,894.06/x
  3. Step 3: Cross multiply
    15,266.13x = 21,065.53 × 8,894.06
  4. Step 4: Simplify right side
    15,266.13x = 187,358,087.75
  5. Step 5: Solve for x
    x = 187,358,087.75/15,266.13
  6. Step 6: Final answer
    x = 12,272.80

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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.