Home / 12,316.59-18,457.47-7,040.79

Finding the Fourth Proportional to 12,316.59, 18,457.47 and 7,040.79

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Solution

The fourth proportional to 12,316.59, 18,457.47 and 7,040.79 is: 10,551.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.59 : 18,457.47 = 7,040.79 : x
  2. Step 2: Convert to fraction form
    12,316.59/18,457.47 = 7,040.79/x
  3. Step 3: Cross multiply
    12,316.59x = 18,457.47 × 7,040.79
  4. Step 4: Simplify right side
    12,316.59x = 129,955,170.20
  5. Step 5: Solve for x
    x = 129,955,170.20/12,316.59
  6. Step 6: Final answer
    x = 10,551.23

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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.