Home / 18,715.08-25,853.40-14,963.16

Finding the Fourth Proportional to 18,715.08, 25,853.40 and 14,963.16

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Solution

The fourth proportional to 18,715.08, 25,853.40 and 14,963.16 is: 20,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.08 : 25,853.40 = 14,963.16 : x
  2. Step 2: Convert to fraction form
    18,715.08/25,853.40 = 14,963.16/x
  3. Step 3: Cross multiply
    18,715.08x = 25,853.40 × 14,963.16
  4. Step 4: Simplify right side
    18,715.08x = 386,848,560.74
  5. Step 5: Solve for x
    x = 386,848,560.74/18,715.08
  6. Step 6: Final answer
    x = 20,670.42

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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.