Home / 18,903.96-28,357.56-5,756.46

Finding the Fourth Proportional to 18,903.96, 28,357.56 and 5,756.46

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Solution

The fourth proportional to 18,903.96, 28,357.56 and 5,756.46 is: 8,635.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.96 : 28,357.56 = 5,756.46 : x
  2. Step 2: Convert to fraction form
    18,903.96/28,357.56 = 5,756.46/x
  3. Step 3: Cross multiply
    18,903.96x = 28,357.56 × 5,756.46
  4. Step 4: Simplify right side
    18,903.96x = 163,239,159.84
  5. Step 5: Solve for x
    x = 163,239,159.84/18,903.96
  6. Step 6: Final answer
    x = 8,635.18

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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.