Home / 15,653.80-23,484.35-5,123.78

Finding the Fourth Proportional to 15,653.80, 23,484.35 and 5,123.78

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Solution

The fourth proportional to 15,653.80, 23,484.35 and 5,123.78 is: 7,686.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.80 : 23,484.35 = 5,123.78 : x
  2. Step 2: Convert to fraction form
    15,653.80/23,484.35 = 5,123.78/x
  3. Step 3: Cross multiply
    15,653.80x = 23,484.35 × 5,123.78
  4. Step 4: Simplify right side
    15,653.80x = 120,328,642.84
  5. Step 5: Solve for x
    x = 120,328,642.84/15,653.80
  6. Step 6: Final answer
    x = 7,686.86

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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.