Home / 13,357.77-18,432.10-7,388.63

Finding the Fourth Proportional to 13,357.77, 18,432.10 and 7,388.63

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Solution

The fourth proportional to 13,357.77, 18,432.10 and 7,388.63 is: 10,195.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.77 : 18,432.10 = 7,388.63 : x
  2. Step 2: Convert to fraction form
    13,357.77/18,432.10 = 7,388.63/x
  3. Step 3: Cross multiply
    13,357.77x = 18,432.10 × 7,388.63
  4. Step 4: Simplify right side
    13,357.77x = 136,187,967.02
  5. Step 5: Solve for x
    x = 136,187,967.02/13,357.77
  6. Step 6: Final answer
    x = 10,195.41

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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.