Home / 10,488.89-15,739.50-3,915.59

Finding the Fourth Proportional to 10,488.89, 15,739.50 and 3,915.59

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Solution

The fourth proportional to 10,488.89, 15,739.50 and 3,915.59 is: 5,875.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488.89 : 15,739.50 = 3,915.59 : x
  2. Step 2: Convert to fraction form
    10,488.89/15,739.50 = 3,915.59/x
  3. Step 3: Cross multiply
    10,488.89x = 15,739.50 × 3,915.59
  4. Step 4: Simplify right side
    10,488.89x = 61,629,482.84
  5. Step 5: Solve for x
    x = 61,629,482.84/10,488.89
  6. Step 6: Final answer
    x = 5,875.69

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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.