Home / 14,278.17-19,702.85-7,904.55

Finding the Fourth Proportional to 14,278.17, 19,702.85 and 7,904.55

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Solution

The fourth proportional to 14,278.17, 19,702.85 and 7,904.55 is: 10,907.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.17 : 19,702.85 = 7,904.55 : x
  2. Step 2: Convert to fraction form
    14,278.17/19,702.85 = 7,904.55/x
  3. Step 3: Cross multiply
    14,278.17x = 19,702.85 × 7,904.55
  4. Step 4: Simplify right side
    14,278.17x = 155,742,123.44
  5. Step 5: Solve for x
    x = 155,742,123.44/14,278.17
  6. Step 6: Final answer
    x = 10,907.71

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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.