Home / 18,699.39-25,803.50-10,740.87

Finding the Fourth Proportional to 18,699.39, 25,803.50 and 10,740.87

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Solution

The fourth proportional to 18,699.39, 25,803.50 and 10,740.87 is: 14,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699.39 : 25,803.50 = 10,740.87 : x
  2. Step 2: Convert to fraction form
    18,699.39/25,803.50 = 10,740.87/x
  3. Step 3: Cross multiply
    18,699.39x = 25,803.50 × 10,740.87
  4. Step 4: Simplify right side
    18,699.39x = 277,151,985.34
  5. Step 5: Solve for x
    x = 277,151,985.34/18,699.39
  6. Step 6: Final answer
    x = 14,821.45

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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.