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Finding the Fourth Proportional to 18,999.47, 26,219.13 and 10,502.16

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Solution

The fourth proportional to 18,999.47, 26,219.13 and 10,502.16 is: 14,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.47 : 26,219.13 = 10,502.16 : x
  2. Step 2: Convert to fraction form
    18,999.47/26,219.13 = 10,502.16/x
  3. Step 3: Cross multiply
    18,999.47x = 26,219.13 × 10,502.16
  4. Step 4: Simplify right side
    18,999.47x = 275,357,498.32
  5. Step 5: Solve for x
    x = 275,357,498.32/18,999.47
  6. Step 6: Final answer
    x = 14,492.91

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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.