Home / 19,134.96-28,702.12-5,987.20

Finding the Fourth Proportional to 19,134.96, 28,702.12 and 5,987.20

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Solution

The fourth proportional to 19,134.96, 28,702.12 and 5,987.20 is: 8,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,134.96 : 28,702.12 = 5,987.20 : x
  2. Step 2: Convert to fraction form
    19,134.96/28,702.12 = 5,987.20/x
  3. Step 3: Cross multiply
    19,134.96x = 28,702.12 × 5,987.20
  4. Step 4: Simplify right side
    19,134.96x = 171,845,332.86
  5. Step 5: Solve for x
    x = 171,845,332.86/19,134.96
  6. Step 6: Final answer
    x = 8,980.70

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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.