Home / 13,501.98-20,155.29-11,664.90

Finding the Fourth Proportional to 13,501.98, 20,155.29 and 11,664.90

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Solution

The fourth proportional to 13,501.98, 20,155.29 and 11,664.90 is: 17,412.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.98 : 20,155.29 = 11,664.90 : x
  2. Step 2: Convert to fraction form
    13,501.98/20,155.29 = 11,664.90/x
  3. Step 3: Cross multiply
    13,501.98x = 20,155.29 × 11,664.90
  4. Step 4: Simplify right side
    13,501.98x = 235,109,442.32
  5. Step 5: Solve for x
    x = 235,109,442.32/13,501.98
  6. Step 6: Final answer
    x = 17,412.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.