Home / 12,916.56-19,242.51-12,446.22

Finding the Fourth Proportional to 12,916.56, 19,242.51 and 12,446.22

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Solution

The fourth proportional to 12,916.56, 19,242.51 and 12,446.22 is: 18,541.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916.56 : 19,242.51 = 12,446.22 : x
  2. Step 2: Convert to fraction form
    12,916.56/19,242.51 = 12,446.22/x
  3. Step 3: Cross multiply
    12,916.56x = 19,242.51 × 12,446.22
  4. Step 4: Simplify right side
    12,916.56x = 239,496,512.81
  5. Step 5: Solve for x
    x = 239,496,512.81/12,916.56
  6. Step 6: Final answer
    x = 18,541.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.