Home / 10,561.04-15,812.40-7,956.08

Finding the Fourth Proportional to 10,561.04, 15,812.40 and 7,956.08

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Solution

The fourth proportional to 10,561.04, 15,812.40 and 7,956.08 is: 11,912.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.04 : 15,812.40 = 7,956.08 : x
  2. Step 2: Convert to fraction form
    10,561.04/15,812.40 = 7,956.08/x
  3. Step 3: Cross multiply
    10,561.04x = 15,812.40 × 7,956.08
  4. Step 4: Simplify right side
    10,561.04x = 125,804,719.39
  5. Step 5: Solve for x
    x = 125,804,719.39/10,561.04
  6. Step 6: Final answer
    x = 11,912.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.