Home / 13,740.84-18,953.39-8,699.81

Finding the Fourth Proportional to 13,740.84, 18,953.39 and 8,699.81

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Solution

The fourth proportional to 13,740.84, 18,953.39 and 8,699.81 is: 12,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.84 : 18,953.39 = 8,699.81 : x
  2. Step 2: Convert to fraction form
    13,740.84/18,953.39 = 8,699.81/x
  3. Step 3: Cross multiply
    13,740.84x = 18,953.39 × 8,699.81
  4. Step 4: Simplify right side
    13,740.84x = 164,890,818.84
  5. Step 5: Solve for x
    x = 164,890,818.84/13,740.84
  6. Step 6: Final answer
    x = 12,000.05

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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.