Home / 13,298.65-18,353.09-7,331.33

Finding the Fourth Proportional to 13,298.65, 18,353.09 and 7,331.33

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Solution

The fourth proportional to 13,298.65, 18,353.09 and 7,331.33 is: 10,117.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.65 : 18,353.09 = 7,331.33 : x
  2. Step 2: Convert to fraction form
    13,298.65/18,353.09 = 7,331.33/x
  3. Step 3: Cross multiply
    13,298.65x = 18,353.09 × 7,331.33
  4. Step 4: Simplify right side
    13,298.65x = 134,552,623.52
  5. Step 5: Solve for x
    x = 134,552,623.52/13,298.65
  6. Step 6: Final answer
    x = 10,117.77

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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.