Home / 18,438.48-25,445.08-10,055

Finding the Fourth Proportional to 18,438.48, 25,445.08 and 10,055

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Solution

The fourth proportional to 18,438.48, 25,445.08 and 10,055 is: 13,875.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.48 : 25,445.08 = 10,055 : x
  2. Step 2: Convert to fraction form
    18,438.48/25,445.08 = 10,055/x
  3. Step 3: Cross multiply
    18,438.48x = 25,445.08 × 10,055
  4. Step 4: Simplify right side
    18,438.48x = 255,850,279.40
  5. Step 5: Solve for x
    x = 255,850,279.40/18,438.48
  6. Step 6: Final answer
    x = 13,875.89

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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.