Home / 15,211.28-21,006.08-14,383

Finding the Fourth Proportional to 15,211.28, 21,006.08 and 14,383

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Solution

The fourth proportional to 15,211.28, 21,006.08 and 14,383 is: 19,862.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.28 : 21,006.08 = 14,383 : x
  2. Step 2: Convert to fraction form
    15,211.28/21,006.08 = 14,383/x
  3. Step 3: Cross multiply
    15,211.28x = 21,006.08 × 14,383
  4. Step 4: Simplify right side
    15,211.28x = 302,130,448.64
  5. Step 5: Solve for x
    x = 302,130,448.64/15,211.28
  6. Step 6: Final answer
    x = 19,862.26

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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.