Home / 15,338.13-21,159.72-9,368.67

Finding the Fourth Proportional to 15,338.13, 21,159.72 and 9,368.67

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Solution

The fourth proportional to 15,338.13, 21,159.72 and 9,368.67 is: 12,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.13 : 21,159.72 = 9,368.67 : x
  2. Step 2: Convert to fraction form
    15,338.13/21,159.72 = 9,368.67/x
  3. Step 3: Cross multiply
    15,338.13x = 21,159.72 × 9,368.67
  4. Step 4: Simplify right side
    15,338.13x = 198,238,433.97
  5. Step 5: Solve for x
    x = 198,238,433.97/15,338.13
  6. Step 6: Final answer
    x = 12,924.55

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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.