Home / 14,340.96-21,515.28-12,970.08

Finding the Fourth Proportional to 14,340.96, 21,515.28 and 12,970.08

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Solution

The fourth proportional to 14,340.96, 21,515.28 and 12,970.08 is: 19,458.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,340.96 : 21,515.28 = 12,970.08 : x
  2. Step 2: Convert to fraction form
    14,340.96/21,515.28 = 12,970.08/x
  3. Step 3: Cross multiply
    14,340.96x = 21,515.28 × 12,970.08
  4. Step 4: Simplify right side
    14,340.96x = 279,054,902.82
  5. Step 5: Solve for x
    x = 279,054,902.82/14,340.96
  6. Step 6: Final answer
    x = 19,458.59

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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.