Home / 15,431.81-21,296.28-9,466.76

Finding the Fourth Proportional to 15,431.81, 21,296.28 and 9,466.76

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Solution

The fourth proportional to 15,431.81, 21,296.28 and 9,466.76 is: 13,064.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.81 : 21,296.28 = 9,466.76 : x
  2. Step 2: Convert to fraction form
    15,431.81/21,296.28 = 9,466.76/x
  3. Step 3: Cross multiply
    15,431.81x = 21,296.28 × 9,466.76
  4. Step 4: Simplify right side
    15,431.81x = 201,606,665.17
  5. Step 5: Solve for x
    x = 201,606,665.17/15,431.81
  6. Step 6: Final answer
    x = 13,064.36

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Double 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.