Home / 15,281.93-21,089.04-9,313.58

Finding the Fourth Proportional to 15,281.93, 21,089.04 and 9,313.58

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Solution

The fourth proportional to 15,281.93, 21,089.04 and 9,313.58 is: 12,852.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281.93 : 21,089.04 = 9,313.58 : x
  2. Step 2: Convert to fraction form
    15,281.93/21,089.04 = 9,313.58/x
  3. Step 3: Cross multiply
    15,281.93x = 21,089.04 × 9,313.58
  4. Step 4: Simplify right side
    15,281.93x = 196,414,355.72
  5. Step 5: Solve for x
    x = 196,414,355.72/15,281.93
  6. Step 6: Final answer
    x = 12,852.72

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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.