Home / 18,342.15-25,312.28-10,788.81

Finding the Fourth Proportional to 18,342.15, 25,312.28 and 10,788.81

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Solution

The fourth proportional to 18,342.15, 25,312.28 and 10,788.81 is: 14,888.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.15 : 25,312.28 = 10,788.81 : x
  2. Step 2: Convert to fraction form
    18,342.15/25,312.28 = 10,788.81/x
  3. Step 3: Cross multiply
    18,342.15x = 25,312.28 × 10,788.81
  4. Step 4: Simplify right side
    18,342.15x = 273,089,325.64
  5. Step 5: Solve for x
    x = 273,089,325.64/18,342.15
  6. Step 6: Final answer
    x = 14,888.62

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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.