Home / 13,599.09-18,767.70-7,549.65

Finding the Fourth Proportional to 13,599.09, 18,767.70 and 7,549.65

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Solution

The fourth proportional to 13,599.09, 18,767.70 and 7,549.65 is: 10,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.09 : 18,767.70 = 7,549.65 : x
  2. Step 2: Convert to fraction form
    13,599.09/18,767.70 = 7,549.65/x
  3. Step 3: Cross multiply
    13,599.09x = 18,767.70 × 7,549.65
  4. Step 4: Simplify right side
    13,599.09x = 141,689,566.31
  5. Step 5: Solve for x
    x = 141,689,566.31/13,599.09
  6. Step 6: Final answer
    x = 10,419.05

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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.