Home / 14,322.78-19,720.52-13,010.58

Finding the Fourth Proportional to 14,322.78, 19,720.52 and 13,010.58

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Solution

The fourth proportional to 14,322.78, 19,720.52 and 13,010.58 is: 17,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,322.78 : 19,720.52 = 13,010.58 : x
  2. Step 2: Convert to fraction form
    14,322.78/19,720.52 = 13,010.58/x
  3. Step 3: Cross multiply
    14,322.78x = 19,720.52 × 13,010.58
  4. Step 4: Simplify right side
    14,322.78x = 256,575,403.10
  5. Step 5: Solve for x
    x = 256,575,403.10/14,322.78
  6. Step 6: Final answer
    x = 17,913.80

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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.