Home / 15,266.40-21,055.78-10,229.01

Finding the Fourth Proportional to 15,266.40, 21,055.78 and 10,229.01

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Solution

The fourth proportional to 15,266.40, 21,055.78 and 10,229.01 is: 14,108.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266.40 : 21,055.78 = 10,229.01 : x
  2. Step 2: Convert to fraction form
    15,266.40/21,055.78 = 10,229.01/x
  3. Step 3: Cross multiply
    15,266.40x = 21,055.78 × 10,229.01
  4. Step 4: Simplify right side
    15,266.40x = 215,379,784.18
  5. Step 5: Solve for x
    x = 215,379,784.18/15,266.40
  6. Step 6: Final answer
    x = 14,108.09

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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.