Home / 15,377.66-21,082.75-15,097.40

Finding the Fourth Proportional to 15,377.66, 21,082.75 and 15,097.40

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Solution

The fourth proportional to 15,377.66, 21,082.75 and 15,097.40 is: 20,698.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,377.66 : 21,082.75 = 15,097.40 : x
  2. Step 2: Convert to fraction form
    15,377.66/21,082.75 = 15,097.40/x
  3. Step 3: Cross multiply
    15,377.66x = 21,082.75 × 15,097.40
  4. Step 4: Simplify right side
    15,377.66x = 318,294,730.68
  5. Step 5: Solve for x
    x = 318,294,730.68/15,377.66
  6. Step 6: Final answer
    x = 20,698.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.