Home / 14,156.97-21,225.32-6,656.31

Finding the Fourth Proportional to 14,156.97, 21,225.32 and 6,656.31

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Solution

The fourth proportional to 14,156.97, 21,225.32 and 6,656.31 is: 9,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156.97 : 21,225.32 = 6,656.31 : x
  2. Step 2: Convert to fraction form
    14,156.97/21,225.32 = 6,656.31/x
  3. Step 3: Cross multiply
    14,156.97x = 21,225.32 × 6,656.31
  4. Step 4: Simplify right side
    14,156.97x = 141,282,309.77
  5. Step 5: Solve for x
    x = 141,282,309.77/14,156.97
  6. Step 6: Final answer
    x = 9,979.70

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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.