Home / 10,507.04-15,760.51-3,111.54

Finding the Fourth Proportional to 10,507.04, 15,760.51 and 3,111.54

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Solution

The fourth proportional to 10,507.04, 15,760.51 and 3,111.54 is: 4,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,507.04 : 15,760.51 = 3,111.54 : x
  2. Step 2: Convert to fraction form
    10,507.04/15,760.51 = 3,111.54/x
  3. Step 3: Cross multiply
    10,507.04x = 15,760.51 × 3,111.54
  4. Step 4: Simplify right side
    10,507.04x = 49,039,457.29
  5. Step 5: Solve for x
    x = 49,039,457.29/10,507.04
  6. Step 6: Final answer
    x = 4,667.30

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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.