Home / 15,342.89-21,173.40-9,055.26

Finding the Fourth Proportional to 15,342.89, 21,173.40 and 9,055.26

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Solution

The fourth proportional to 15,342.89, 21,173.40 and 9,055.26 is: 12,496.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.89 : 21,173.40 = 9,055.26 : x
  2. Step 2: Convert to fraction form
    15,342.89/21,173.40 = 9,055.26/x
  3. Step 3: Cross multiply
    15,342.89x = 21,173.40 × 9,055.26
  4. Step 4: Simplify right side
    15,342.89x = 191,730,642.08
  5. Step 5: Solve for x
    x = 191,730,642.08/15,342.89
  6. Step 6: Final answer
    x = 12,496.39

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Double scale
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Similar ratio
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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.