Home / 14,085.28-21,129.08-4,725.39

Finding the Fourth Proportional to 14,085.28, 21,129.08 and 4,725.39

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Solution

The fourth proportional to 14,085.28, 21,129.08 and 4,725.39 is: 7,088.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.28 : 21,129.08 = 4,725.39 : x
  2. Step 2: Convert to fraction form
    14,085.28/21,129.08 = 4,725.39/x
  3. Step 3: Cross multiply
    14,085.28x = 21,129.08 × 4,725.39
  4. Step 4: Simplify right side
    14,085.28x = 99,843,143.34
  5. Step 5: Solve for x
    x = 99,843,143.34/14,085.28
  6. Step 6: Final answer
    x = 7,088.47

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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.