Home / 13,316.24-18,376.47-7,347.91

Finding the Fourth Proportional to 13,316.24, 18,376.47 and 7,347.91

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Solution

The fourth proportional to 13,316.24, 18,376.47 and 7,347.91 is: 10,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.24 : 18,376.47 = 7,347.91 : x
  2. Step 2: Convert to fraction form
    13,316.24/18,376.47 = 7,347.91/x
  3. Step 3: Cross multiply
    13,316.24x = 18,376.47 × 7,347.91
  4. Step 4: Simplify right side
    13,316.24x = 135,028,647.68
  5. Step 5: Solve for x
    x = 135,028,647.68/13,316.24
  6. Step 6: Final answer
    x = 10,140.15

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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.