Home / 15,733.52-21,705-10,146.32

Finding the Fourth Proportional to 15,733.52, 21,705 and 10,146.32

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Solution

The fourth proportional to 15,733.52, 21,705 and 10,146.32 is: 13,997.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,733.52 : 21,705 = 10,146.32 : x
  2. Step 2: Convert to fraction form
    15,733.52/21,705 = 10,146.32/x
  3. Step 3: Cross multiply
    15,733.52x = 21,705 × 10,146.32
  4. Step 4: Simplify right side
    15,733.52x = 220,225,875.60
  5. Step 5: Solve for x
    x = 220,225,875.60/15,733.52
  6. Step 6: Final answer
    x = 13,997.24

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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.