Home / 10,912.08-15,064.40-7,345.81

Finding the Fourth Proportional to 10,912.08, 15,064.40 and 7,345.81

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Solution

The fourth proportional to 10,912.08, 15,064.40 and 7,345.81 is: 10,141.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.08 : 15,064.40 = 7,345.81 : x
  2. Step 2: Convert to fraction form
    10,912.08/15,064.40 = 7,345.81/x
  3. Step 3: Cross multiply
    10,912.08x = 15,064.40 × 7,345.81
  4. Step 4: Simplify right side
    10,912.08x = 110,660,220.16
  5. Step 5: Solve for x
    x = 110,660,220.16/10,912.08
  6. Step 6: Final answer
    x = 10,141.07

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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.