Home / 13,291.04-18,341.55-7,322.57

Finding the Fourth Proportional to 13,291.04, 18,341.55 and 7,322.57

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Solution

The fourth proportional to 13,291.04, 18,341.55 and 7,322.57 is: 10,105.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.04 : 18,341.55 = 7,322.57 : x
  2. Step 2: Convert to fraction form
    13,291.04/18,341.55 = 7,322.57/x
  3. Step 3: Cross multiply
    13,291.04x = 18,341.55 × 7,322.57
  4. Step 4: Simplify right side
    13,291.04x = 134,307,283.78
  5. Step 5: Solve for x
    x = 134,307,283.78/13,291.04
  6. Step 6: Final answer
    x = 10,105.10

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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.