Home / 13,666.79-18,849.69-10,310.15

Finding the Fourth Proportional to 13,666.79, 18,849.69 and 10,310.15

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Solution

The fourth proportional to 13,666.79, 18,849.69 and 10,310.15 is: 14,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.79 : 18,849.69 = 10,310.15 : x
  2. Step 2: Convert to fraction form
    13,666.79/18,849.69 = 10,310.15/x
  3. Step 3: Cross multiply
    13,666.79x = 18,849.69 × 10,310.15
  4. Step 4: Simplify right side
    13,666.79x = 194,343,131.35
  5. Step 5: Solve for x
    x = 194,343,131.35/13,666.79
  6. Step 6: Final answer
    x = 14,220.10

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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.