Home / 13,431.49-18,534.55-7,463.16

Finding the Fourth Proportional to 13,431.49, 18,534.55 and 7,463.16

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Solution

The fourth proportional to 13,431.49, 18,534.55 and 7,463.16 is: 10,298.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.49 : 18,534.55 = 7,463.16 : x
  2. Step 2: Convert to fraction form
    13,431.49/18,534.55 = 7,463.16/x
  3. Step 3: Cross multiply
    13,431.49x = 18,534.55 × 7,463.16
  4. Step 4: Simplify right side
    13,431.49x = 138,326,312.18
  5. Step 5: Solve for x
    x = 138,326,312.18/13,431.49
  6. Step 6: Final answer
    x = 10,298.66

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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.