Home / 15,376.56-21,212.28-10,069.04

Finding the Fourth Proportional to 15,376.56, 21,212.28 and 10,069.04

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Solution

The fourth proportional to 15,376.56, 21,212.28 and 10,069.04 is: 13,890.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376.56 : 21,212.28 = 10,069.04 : x
  2. Step 2: Convert to fraction form
    15,376.56/21,212.28 = 10,069.04/x
  3. Step 3: Cross multiply
    15,376.56x = 21,212.28 × 10,069.04
  4. Step 4: Simplify right side
    15,376.56x = 213,587,295.81
  5. Step 5: Solve for x
    x = 213,587,295.81/15,376.56
  6. Step 6: Final answer
    x = 13,890.45

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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.