Home / 15,548.12-21,464.62-12,490.10

Finding the Fourth Proportional to 15,548.12, 21,464.62 and 12,490.10

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Solution

The fourth proportional to 15,548.12, 21,464.62 and 12,490.10 is: 17,242.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.12 : 21,464.62 = 12,490.10 : x
  2. Step 2: Convert to fraction form
    15,548.12/21,464.62 = 12,490.10/x
  3. Step 3: Cross multiply
    15,548.12x = 21,464.62 × 12,490.10
  4. Step 4: Simplify right side
    15,548.12x = 268,095,250.26
  5. Step 5: Solve for x
    x = 268,095,250.26/15,548.12
  6. Step 6: Final answer
    x = 17,242.94

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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.