Home / 10,916.39-15,055.79-7,330.26

Finding the Fourth Proportional to 10,916.39, 15,055.79 and 7,330.26

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Solution

The fourth proportional to 10,916.39, 15,055.79 and 7,330.26 is: 10,109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.39 : 15,055.79 = 7,330.26 : x
  2. Step 2: Convert to fraction form
    10,916.39/15,055.79 = 7,330.26/x
  3. Step 3: Cross multiply
    10,916.39x = 15,055.79 × 7,330.26
  4. Step 4: Simplify right side
    10,916.39x = 110,362,873.53
  5. Step 5: Solve for x
    x = 110,362,873.53/10,916.39
  6. Step 6: Final answer
    x = 10,109.84

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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.