Home / 14,003.28-21,002.76-6,210.72

Finding the Fourth Proportional to 14,003.28, 21,002.76 and 6,210.72

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Solution

The fourth proportional to 14,003.28, 21,002.76 and 6,210.72 is: 9,315.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.28 : 21,002.76 = 6,210.72 : x
  2. Step 2: Convert to fraction form
    14,003.28/21,002.76 = 6,210.72/x
  3. Step 3: Cross multiply
    14,003.28x = 21,002.76 × 6,210.72
  4. Step 4: Simplify right side
    14,003.28x = 130,442,261.59
  5. Step 5: Solve for x
    x = 130,442,261.59/14,003.28
  6. Step 6: Final answer
    x = 9,315.12

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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.