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Finding the Fourth Proportional to 18,703.04, 25,809.18 and 10,319

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Solution

The fourth proportional to 18,703.04, 25,809.18 and 10,319 is: 14,239.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703.04 : 25,809.18 = 10,319 : x
  2. Step 2: Convert to fraction form
    18,703.04/25,809.18 = 10,319/x
  3. Step 3: Cross multiply
    18,703.04x = 25,809.18 × 10,319
  4. Step 4: Simplify right side
    18,703.04x = 266,324,928.42
  5. Step 5: Solve for x
    x = 266,324,928.42/18,703.04
  6. Step 6: Final answer
    x = 14,239.66

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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.