Home / 15,140.93-20,888.69-9,473.36

Finding the Fourth Proportional to 15,140.93, 20,888.69 and 9,473.36

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Solution

The fourth proportional to 15,140.93, 20,888.69 and 9,473.36 is: 13,069.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.93 : 20,888.69 = 9,473.36 : x
  2. Step 2: Convert to fraction form
    15,140.93/20,888.69 = 9,473.36/x
  3. Step 3: Cross multiply
    15,140.93x = 20,888.69 × 9,473.36
  4. Step 4: Simplify right side
    15,140.93x = 197,885,928.49
  5. Step 5: Solve for x
    x = 197,885,928.49/15,140.93
  6. Step 6: Final answer
    x = 13,069.61

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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.