Home / 8,419.34-11,615.87-5,437.19

Finding the Fourth Proportional to 8,419.34, 11,615.87 and 5,437.19

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Solution

The fourth proportional to 8,419.34, 11,615.87 and 5,437.19 is: 7,501.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.34 : 11,615.87 = 5,437.19 : x
  2. Step 2: Convert to fraction form
    8,419.34/11,615.87 = 5,437.19/x
  3. Step 3: Cross multiply
    8,419.34x = 11,615.87 × 5,437.19
  4. Step 4: Simplify right side
    8,419.34x = 63,157,734.84
  5. Step 5: Solve for x
    x = 63,157,734.84/8,419.34
  6. Step 6: Final answer
    x = 7,501.50

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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.