Home / 13,377.37-18,459.23-7,712.07

Finding the Fourth Proportional to 13,377.37, 18,459.23 and 7,712.07

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Solution

The fourth proportional to 13,377.37, 18,459.23 and 7,712.07 is: 10,641.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.37 : 18,459.23 = 7,712.07 : x
  2. Step 2: Convert to fraction form
    13,377.37/18,459.23 = 7,712.07/x
  3. Step 3: Cross multiply
    13,377.37x = 18,459.23 × 7,712.07
  4. Step 4: Simplify right side
    13,377.37x = 142,358,835.35
  5. Step 5: Solve for x
    x = 142,358,835.35/13,377.37
  6. Step 6: Final answer
    x = 10,641.77

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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.