Home / 15,105.60-20,848.70-9,651.17

Finding the Fourth Proportional to 15,105.60, 20,848.70 and 9,651.17

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Solution

The fourth proportional to 15,105.60, 20,848.70 and 9,651.17 is: 13,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,105.60 : 20,848.70 = 9,651.17 : x
  2. Step 2: Convert to fraction form
    15,105.60/20,848.70 = 9,651.17/x
  3. Step 3: Cross multiply
    15,105.60x = 20,848.70 × 9,651.17
  4. Step 4: Simplify right side
    15,105.60x = 201,214,424.23
  5. Step 5: Solve for x
    x = 201,214,424.23/15,105.60
  6. Step 6: Final answer
    x = 13,320.52

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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.