Home / 13,707.72-18,915.51-8,041.87

Finding the Fourth Proportional to 13,707.72, 18,915.51 and 8,041.87

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Solution

The fourth proportional to 13,707.72, 18,915.51 and 8,041.87 is: 11,097.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707.72 : 18,915.51 = 8,041.87 : x
  2. Step 2: Convert to fraction form
    13,707.72/18,915.51 = 8,041.87/x
  3. Step 3: Cross multiply
    13,707.72x = 18,915.51 × 8,041.87
  4. Step 4: Simplify right side
    13,707.72x = 152,116,072.40
  5. Step 5: Solve for x
    x = 152,116,072.40/13,707.72
  6. Step 6: Final answer
    x = 11,097.11

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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.