Home / 15,716.40-23,547.24-13,115.76

Finding the Fourth Proportional to 15,716.40, 23,547.24 and 13,115.76

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Solution

The fourth proportional to 15,716.40, 23,547.24 and 13,115.76 is: 19,650.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,716.40 : 23,547.24 = 13,115.76 : x
  2. Step 2: Convert to fraction form
    15,716.40/23,547.24 = 13,115.76/x
  3. Step 3: Cross multiply
    15,716.40x = 23,547.24 × 13,115.76
  4. Step 4: Simplify right side
    15,716.40x = 308,839,948.50
  5. Step 5: Solve for x
    x = 308,839,948.50/15,716.40
  6. Step 6: Final answer
    x = 19,650.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.