Home / 15,745.32-21,729.40-9,030.89

Finding the Fourth Proportional to 15,745.32, 21,729.40 and 9,030.89

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Solution

The fourth proportional to 15,745.32, 21,729.40 and 9,030.89 is: 12,463.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,745.32 : 21,729.40 = 9,030.89 : x
  2. Step 2: Convert to fraction form
    15,745.32/21,729.40 = 9,030.89/x
  3. Step 3: Cross multiply
    15,745.32x = 21,729.40 × 9,030.89
  4. Step 4: Simplify right side
    15,745.32x = 196,235,852.91
  5. Step 5: Solve for x
    x = 196,235,852.91/15,745.32
  6. Step 6: Final answer
    x = 12,463.12

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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.