Home / 14,240.96-21,365.28-12,870.08

Finding the Fourth Proportional to 14,240.96, 21,365.28 and 12,870.08

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Solution

The fourth proportional to 14,240.96, 21,365.28 and 12,870.08 is: 19,308.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,240.96 : 21,365.28 = 12,870.08 : x
  2. Step 2: Convert to fraction form
    14,240.96/21,365.28 = 12,870.08/x
  3. Step 3: Cross multiply
    14,240.96x = 21,365.28 × 12,870.08
  4. Step 4: Simplify right side
    14,240.96x = 274,972,862.82
  5. Step 5: Solve for x
    x = 274,972,862.82/14,240.96
  6. Step 6: Final answer
    x = 19,308.59

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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.