Home / 10,579.40-15,948.59-9,865.99

Finding the Fourth Proportional to 10,579.40, 15,948.59 and 9,865.99

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Solution

The fourth proportional to 10,579.40, 15,948.59 and 9,865.99 is: 14,873.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.40 : 15,948.59 = 9,865.99 : x
  2. Step 2: Convert to fraction form
    10,579.40/15,948.59 = 9,865.99/x
  3. Step 3: Cross multiply
    10,579.40x = 15,948.59 × 9,865.99
  4. Step 4: Simplify right side
    10,579.40x = 157,348,629.45
  5. Step 5: Solve for x
    x = 157,348,629.45/10,579.40
  6. Step 6: Final answer
    x = 14,873.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.