Home / 13,366.48-18,445.70-7,316.80

Finding the Fourth Proportional to 13,366.48, 18,445.70 and 7,316.80

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Solution

The fourth proportional to 13,366.48, 18,445.70 and 7,316.80 is: 10,097.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.48 : 18,445.70 = 7,316.80 : x
  2. Step 2: Convert to fraction form
    13,366.48/18,445.70 = 7,316.80/x
  3. Step 3: Cross multiply
    13,366.48x = 18,445.70 × 7,316.80
  4. Step 4: Simplify right side
    13,366.48x = 134,963,497.76
  5. Step 5: Solve for x
    x = 134,963,497.76/13,366.48
  6. Step 6: Final answer
    x = 10,097.16

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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.