Home / 19,386.30-26,753.13-11,325.48

Finding the Fourth Proportional to 19,386.30, 26,753.13 and 11,325.48

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Solution

The fourth proportional to 19,386.30, 26,753.13 and 11,325.48 is: 15,629.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.30 : 26,753.13 = 11,325.48 : x
  2. Step 2: Convert to fraction form
    19,386.30/26,753.13 = 11,325.48/x
  3. Step 3: Cross multiply
    19,386.30x = 26,753.13 × 11,325.48
  4. Step 4: Simplify right side
    19,386.30x = 302,992,038.75
  5. Step 5: Solve for x
    x = 302,992,038.75/19,386.30
  6. Step 6: Final answer
    x = 15,629.18

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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.