Home / 14,315.05-19,754.40-7,941.61

Finding the Fourth Proportional to 14,315.05, 19,754.40 and 7,941.61

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Solution

The fourth proportional to 14,315.05, 19,754.40 and 7,941.61 is: 10,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,315.05 : 19,754.40 = 7,941.61 : x
  2. Step 2: Convert to fraction form
    14,315.05/19,754.40 = 7,941.61/x
  3. Step 3: Cross multiply
    14,315.05x = 19,754.40 × 7,941.61
  4. Step 4: Simplify right side
    14,315.05x = 156,881,641.81
  5. Step 5: Solve for x
    x = 156,881,641.81/14,315.05
  6. Step 6: Final answer
    x = 10,959.21

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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.