Home / 15,741.81-21,724.23-8,572.01

Finding the Fourth Proportional to 15,741.81, 21,724.23 and 8,572.01

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Solution

The fourth proportional to 15,741.81, 21,724.23 and 8,572.01 is: 11,829.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.81 : 21,724.23 = 8,572.01 : x
  2. Step 2: Convert to fraction form
    15,741.81/21,724.23 = 8,572.01/x
  3. Step 3: Cross multiply
    15,741.81x = 21,724.23 × 8,572.01
  4. Step 4: Simplify right side
    15,741.81x = 186,220,270.88
  5. Step 5: Solve for x
    x = 186,220,270.88/15,741.81
  6. Step 6: Final answer
    x = 11,829.66

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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.