Home / 13,445.19-18,553.55-7,476.66

Finding the Fourth Proportional to 13,445.19, 18,553.55 and 7,476.66

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Solution

The fourth proportional to 13,445.19, 18,553.55 and 7,476.66 is: 10,317.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.19 : 18,553.55 = 7,476.66 : x
  2. Step 2: Convert to fraction form
    13,445.19/18,553.55 = 7,476.66/x
  3. Step 3: Cross multiply
    13,445.19x = 18,553.55 × 7,476.66
  4. Step 4: Simplify right side
    13,445.19x = 138,718,547.76
  5. Step 5: Solve for x
    x = 138,718,547.76/13,445.19
  6. Step 6: Final answer
    x = 10,317.34

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Half scale
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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.