Home / 13,377.68-18,461.59-7,409.22

Finding the Fourth Proportional to 13,377.68, 18,461.59 and 7,409.22

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Solution

The fourth proportional to 13,377.68, 18,461.59 and 7,409.22 is: 10,224.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.68 : 18,461.59 = 7,409.22 : x
  2. Step 2: Convert to fraction form
    13,377.68/18,461.59 = 7,409.22/x
  3. Step 3: Cross multiply
    13,377.68x = 18,461.59 × 7,409.22
  4. Step 4: Simplify right side
    13,377.68x = 136,785,894.11
  5. Step 5: Solve for x
    x = 136,785,894.11/13,377.68
  6. Step 6: Final answer
    x = 10,224.93

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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.