Home / 15,678.24-21,626.56-10,371.12

Finding the Fourth Proportional to 15,678.24, 21,626.56 and 10,371.12

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Solution

The fourth proportional to 15,678.24, 21,626.56 and 10,371.12 is: 14,305.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.24 : 21,626.56 = 10,371.12 : x
  2. Step 2: Convert to fraction form
    15,678.24/21,626.56 = 10,371.12/x
  3. Step 3: Cross multiply
    15,678.24x = 21,626.56 × 10,371.12
  4. Step 4: Simplify right side
    15,678.24x = 224,291,648.95
  5. Step 5: Solve for x
    x = 224,291,648.95/15,678.24
  6. Step 6: Final answer
    x = 14,305.92

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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.