Home / 15,918.90-23,878.35-8,045.70

Finding the Fourth Proportional to 15,918.90, 23,878.35 and 8,045.70

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Solution

The fourth proportional to 15,918.90, 23,878.35 and 8,045.70 is: 12,068.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.90 : 23,878.35 = 8,045.70 : x
  2. Step 2: Convert to fraction form
    15,918.90/23,878.35 = 8,045.70/x
  3. Step 3: Cross multiply
    15,918.90x = 23,878.35 × 8,045.70
  4. Step 4: Simplify right side
    15,918.90x = 192,118,040.60
  5. Step 5: Solve for x
    x = 192,118,040.60/15,918.90
  6. Step 6: Final answer
    x = 12,068.55

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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.