Home / 15,495.72-21,376.80-11,237.45

Finding the Fourth Proportional to 15,495.72, 21,376.80 and 11,237.45

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Solution

The fourth proportional to 15,495.72, 21,376.80 and 11,237.45 is: 15,502.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,495.72 : 21,376.80 = 11,237.45 : x
  2. Step 2: Convert to fraction form
    15,495.72/21,376.80 = 11,237.45/x
  3. Step 3: Cross multiply
    15,495.72x = 21,376.80 × 11,237.45
  4. Step 4: Simplify right side
    15,495.72x = 240,220,614.28
  5. Step 5: Solve for x
    x = 240,220,614.28/15,495.72
  6. Step 6: Final answer
    x = 15,502.38

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Half scale
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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.