Home / 18,894.12-28,345.02-6,590.76

Finding the Fourth Proportional to 18,894.12, 28,345.02 and 6,590.76

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Solution

The fourth proportional to 18,894.12, 28,345.02 and 6,590.76 is: 9,887.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,894.12 : 28,345.02 = 6,590.76 : x
  2. Step 2: Convert to fraction form
    18,894.12/28,345.02 = 6,590.76/x
  3. Step 3: Cross multiply
    18,894.12x = 28,345.02 × 6,590.76
  4. Step 4: Simplify right side
    18,894.12x = 186,815,224.02
  5. Step 5: Solve for x
    x = 186,815,224.02/18,894.12
  6. Step 6: Final answer
    x = 9,887.48

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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.