Home / 12,431.56-18,647.40-5,036.16

Finding the Fourth Proportional to 12,431.56, 18,647.40 and 5,036.16

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Solution

The fourth proportional to 12,431.56, 18,647.40 and 5,036.16 is: 7,554.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431.56 : 18,647.40 = 5,036.16 : x
  2. Step 2: Convert to fraction form
    12,431.56/18,647.40 = 5,036.16/x
  3. Step 3: Cross multiply
    12,431.56x = 18,647.40 × 5,036.16
  4. Step 4: Simplify right side
    12,431.56x = 93,911,264.80
  5. Step 5: Solve for x
    x = 93,911,264.80/12,431.56
  6. Step 6: Final answer
    x = 7,554.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.