Home / 15,471.66-21,349.26-8,756.22

Finding the Fourth Proportional to 15,471.66, 21,349.26 and 8,756.22

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Solution

The fourth proportional to 15,471.66, 21,349.26 and 8,756.22 is: 12,082.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,471.66 : 21,349.26 = 8,756.22 : x
  2. Step 2: Convert to fraction form
    15,471.66/21,349.26 = 8,756.22/x
  3. Step 3: Cross multiply
    15,471.66x = 21,349.26 × 8,756.22
  4. Step 4: Simplify right side
    15,471.66x = 186,938,817.40
  5. Step 5: Solve for x
    x = 186,938,817.40/15,471.66
  6. Step 6: Final answer
    x = 12,082.66

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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.