Home / 15,502.19-21,386.43-9,214.56

Finding the Fourth Proportional to 15,502.19, 21,386.43 and 9,214.56

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Solution

The fourth proportional to 15,502.19, 21,386.43 and 9,214.56 is: 12,712.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,502.19 : 21,386.43 = 9,214.56 : x
  2. Step 2: Convert to fraction form
    15,502.19/21,386.43 = 9,214.56/x
  3. Step 3: Cross multiply
    15,502.19x = 21,386.43 × 9,214.56
  4. Step 4: Simplify right side
    15,502.19x = 197,066,542.42
  5. Step 5: Solve for x
    x = 197,066,542.42/15,502.19
  6. Step 6: Final answer
    x = 12,712.18

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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.