Home / 10,779.60-14,879.28-6,305.16

Finding the Fourth Proportional to 10,779.60, 14,879.28 and 6,305.16

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Solution

The fourth proportional to 10,779.60, 14,879.28 and 6,305.16 is: 8,703.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.60 : 14,879.28 = 6,305.16 : x
  2. Step 2: Convert to fraction form
    10,779.60/14,879.28 = 6,305.16/x
  3. Step 3: Cross multiply
    10,779.60x = 14,879.28 × 6,305.16
  4. Step 4: Simplify right side
    10,779.60x = 93,816,241.08
  5. Step 5: Solve for x
    x = 93,816,241.08/10,779.60
  6. Step 6: Final answer
    x = 8,703.13

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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.