Home / 10,603.72-14,619.36-6,820.12

Finding the Fourth Proportional to 10,603.72, 14,619.36 and 6,820.12

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Solution

The fourth proportional to 10,603.72, 14,619.36 and 6,820.12 is: 9,402.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.72 : 14,619.36 = 6,820.12 : x
  2. Step 2: Convert to fraction form
    10,603.72/14,619.36 = 6,820.12/x
  3. Step 3: Cross multiply
    10,603.72x = 14,619.36 × 6,820.12
  4. Step 4: Simplify right side
    10,603.72x = 99,705,789.52
  5. Step 5: Solve for x
    x = 99,705,789.52/10,603.72
  6. Step 6: Final answer
    x = 9,402.91

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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.