Home / 13,140.54-19,726.41-10,369.20

Finding the Fourth Proportional to 13,140.54, 19,726.41 and 10,369.20

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Solution

The fourth proportional to 13,140.54, 19,726.41 and 10,369.20 is: 15,566.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.54 : 19,726.41 = 10,369.20 : x
  2. Step 2: Convert to fraction form
    13,140.54/19,726.41 = 10,369.20/x
  3. Step 3: Cross multiply
    13,140.54x = 19,726.41 × 10,369.20
  4. Step 4: Simplify right side
    13,140.54x = 204,547,090.57
  5. Step 5: Solve for x
    x = 204,547,090.57/13,140.54
  6. Step 6: Final answer
    x = 15,566.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.