Home / 15,386.16-21,241.44-10,088.76

Finding the Fourth Proportional to 15,386.16, 21,241.44 and 10,088.76

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Solution

The fourth proportional to 15,386.16, 21,241.44 and 10,088.76 is: 13,928.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.16 : 21,241.44 = 10,088.76 : x
  2. Step 2: Convert to fraction form
    15,386.16/21,241.44 = 10,088.76/x
  3. Step 3: Cross multiply
    15,386.16x = 21,241.44 × 10,088.76
  4. Step 4: Simplify right side
    15,386.16x = 214,299,790.21
  5. Step 5: Solve for x
    x = 214,299,790.21/15,386.16
  6. Step 6: Final answer
    x = 13,928.09

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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.