Home / 13,064.04-18,025.56-7,760.64

Finding the Fourth Proportional to 13,064.04, 18,025.56 and 7,760.64

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Solution

The fourth proportional to 13,064.04, 18,025.56 and 7,760.64 is: 10,708.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,064.04 : 18,025.56 = 7,760.64 : x
  2. Step 2: Convert to fraction form
    13,064.04/18,025.56 = 7,760.64/x
  3. Step 3: Cross multiply
    13,064.04x = 18,025.56 × 7,760.64
  4. Step 4: Simplify right side
    13,064.04x = 139,889,881.96
  5. Step 5: Solve for x
    x = 139,889,881.96/13,064.04
  6. Step 6: Final answer
    x = 10,708.01

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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.