Home / 17,870.81-24,645.58-11,157.06

Finding the Fourth Proportional to 17,870.81, 24,645.58 and 11,157.06

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Solution

The fourth proportional to 17,870.81, 24,645.58 and 11,157.06 is: 15,386.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,870.81 : 24,645.58 = 11,157.06 : x
  2. Step 2: Convert to fraction form
    17,870.81/24,645.58 = 11,157.06/x
  3. Step 3: Cross multiply
    17,870.81x = 24,645.58 × 11,157.06
  4. Step 4: Simplify right side
    17,870.81x = 274,972,214.79
  5. Step 5: Solve for x
    x = 274,972,214.79/17,870.81
  6. Step 6: Final answer
    x = 15,386.67

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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.