Home / 14,526.40-21,745.54-13,140.32

Finding the Fourth Proportional to 14,526.40, 21,745.54 and 13,140.32

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Solution

The fourth proportional to 14,526.40, 21,745.54 and 13,140.32 is: 19,670.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,526.40 : 21,745.54 = 13,140.32 : x
  2. Step 2: Convert to fraction form
    14,526.40/21,745.54 = 13,140.32/x
  3. Step 3: Cross multiply
    14,526.40x = 21,745.54 × 13,140.32
  4. Step 4: Simplify right side
    14,526.40x = 285,743,354.17
  5. Step 5: Solve for x
    x = 285,743,354.17/14,526.40
  6. Step 6: Final answer
    x = 19,670.62

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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.