Home / 14,102.56-21,152.16-3,715.12

Finding the Fourth Proportional to 14,102.56, 21,152.16 and 3,715.12

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Solution

The fourth proportional to 14,102.56, 21,152.16 and 3,715.12 is: 5,572.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,102.56 : 21,152.16 = 3,715.12 : x
  2. Step 2: Convert to fraction form
    14,102.56/21,152.16 = 3,715.12/x
  3. Step 3: Cross multiply
    14,102.56x = 21,152.16 × 3,715.12
  4. Step 4: Simplify right side
    14,102.56x = 78,582,812.66
  5. Step 5: Solve for x
    x = 78,582,812.66/14,102.56
  6. Step 6: Final answer
    x = 5,572.24

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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.