Home / 13,316.30-18,376.54-7,347.96

Finding the Fourth Proportional to 13,316.30, 18,376.54 and 7,347.96

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Solution

The fourth proportional to 13,316.30, 18,376.54 and 7,347.96 is: 10,140.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.30 : 18,376.54 = 7,347.96 : x
  2. Step 2: Convert to fraction form
    13,316.30/18,376.54 = 7,347.96/x
  3. Step 3: Cross multiply
    13,316.30x = 18,376.54 × 7,347.96
  4. Step 4: Simplify right side
    13,316.30x = 135,030,080.86
  5. Step 5: Solve for x
    x = 135,030,080.86/13,316.30
  6. Step 6: Final answer
    x = 10,140.21

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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.