Home / 16,143.13-22,279.35-9,430.93

Finding the Fourth Proportional to 16,143.13, 22,279.35 and 9,430.93

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Solution

The fourth proportional to 16,143.13, 22,279.35 and 9,430.93 is: 13,015.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,143.13 : 22,279.35 = 9,430.93 : x
  2. Step 2: Convert to fraction form
    16,143.13/22,279.35 = 9,430.93/x
  3. Step 3: Cross multiply
    16,143.13x = 22,279.35 × 9,430.93
  4. Step 4: Simplify right side
    16,143.13x = 210,114,990.30
  5. Step 5: Solve for x
    x = 210,114,990.30/16,143.13
  6. Step 6: Final answer
    x = 13,015.75

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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.