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Finding the Fourth Proportional to 19,335, 26,682.30 and 10,953.12

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Solution

The fourth proportional to 19,335, 26,682.30 and 10,953.12 is: 15,115.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,335 : 26,682.30 = 10,953.12 : x
  2. Step 2: Convert to fraction form
    19,335/26,682.30 = 10,953.12/x
  3. Step 3: Cross multiply
    19,335x = 26,682.30 × 10,953.12
  4. Step 4: Simplify right side
    19,335x = 292,254,433.78
  5. Step 5: Solve for x
    x = 292,254,433.78/19,335
  6. Step 6: Final answer
    x = 15,115.31

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Double scale
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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.