Home / 14,972.32-20,649.36-11,239.84

Finding the Fourth Proportional to 14,972.32, 20,649.36 and 11,239.84

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Solution

The fourth proportional to 14,972.32, 20,649.36 and 11,239.84 is: 15,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,972.32 : 20,649.36 = 11,239.84 : x
  2. Step 2: Convert to fraction form
    14,972.32/20,649.36 = 11,239.84/x
  3. Step 3: Cross multiply
    14,972.32x = 20,649.36 × 11,239.84
  4. Step 4: Simplify right side
    14,972.32x = 232,095,502.50
  5. Step 5: Solve for x
    x = 232,095,502.50/14,972.32
  6. Step 6: Final answer
    x = 15,501.64

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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.