Home / 14,720.77-20,322.19-11,356.03

Finding the Fourth Proportional to 14,720.77, 20,322.19 and 11,356.03

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Solution

The fourth proportional to 14,720.77, 20,322.19 and 11,356.03 is: 15,677.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,720.77 : 20,322.19 = 11,356.03 : x
  2. Step 2: Convert to fraction form
    14,720.77/20,322.19 = 11,356.03/x
  3. Step 3: Cross multiply
    14,720.77x = 20,322.19 × 11,356.03
  4. Step 4: Simplify right side
    14,720.77x = 230,779,399.31
  5. Step 5: Solve for x
    x = 230,779,399.31/14,720.77
  6. Step 6: Final answer
    x = 15,677.13

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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.