Home / 14,152.80-21,239.28-6,368.16

Finding the Fourth Proportional to 14,152.80, 21,239.28 and 6,368.16

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Solution

The fourth proportional to 14,152.80, 21,239.28 and 6,368.16 is: 9,556.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,152.80 : 21,239.28 = 6,368.16 : x
  2. Step 2: Convert to fraction form
    14,152.80/21,239.28 = 6,368.16/x
  3. Step 3: Cross multiply
    14,152.80x = 21,239.28 × 6,368.16
  4. Step 4: Simplify right side
    14,152.80x = 135,255,133.32
  5. Step 5: Solve for x
    x = 135,255,133.32/14,152.80
  6. Step 6: Final answer
    x = 9,556.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.