Home / 9,985.29-14,977.94-4,720.83

Finding the Fourth Proportional to 9,985.29, 14,977.94 and 4,720.83

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Solution

The fourth proportional to 9,985.29, 14,977.94 and 4,720.83 is: 7,081.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.29 : 14,977.94 = 4,720.83 : x
  2. Step 2: Convert to fraction form
    9,985.29/14,977.94 = 4,720.83/x
  3. Step 3: Cross multiply
    9,985.29x = 14,977.94 × 4,720.83
  4. Step 4: Simplify right side
    9,985.29x = 70,708,284.89
  5. Step 5: Solve for x
    x = 70,708,284.89/9,985.29
  6. Step 6: Final answer
    x = 7,081.25

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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.