Home / 9,779.87-13,496.21-5,303.63

Finding the Fourth Proportional to 9,779.87, 13,496.21 and 5,303.63

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Solution

The fourth proportional to 9,779.87, 13,496.21 and 5,303.63 is: 7,319.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,779.87 : 13,496.21 = 5,303.63 : x
  2. Step 2: Convert to fraction form
    9,779.87/13,496.21 = 5,303.63/x
  3. Step 3: Cross multiply
    9,779.87x = 13,496.21 × 5,303.63
  4. Step 4: Simplify right side
    9,779.87x = 71,578,850.02
  5. Step 5: Solve for x
    x = 71,578,850.02/9,779.87
  6. Step 6: Final answer
    x = 7,319.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.