Home / 11,470.75-15,835.40-10,779.55

Finding the Fourth Proportional to 11,470.75, 15,835.40 and 10,779.55

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Solution

The fourth proportional to 11,470.75, 15,835.40 and 10,779.55 is: 14,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,470.75 : 15,835.40 = 10,779.55 : x
  2. Step 2: Convert to fraction form
    11,470.75/15,835.40 = 10,779.55/x
  3. Step 3: Cross multiply
    11,470.75x = 15,835.40 × 10,779.55
  4. Step 4: Simplify right side
    11,470.75x = 170,698,486.07
  5. Step 5: Solve for x
    x = 170,698,486.07/11,470.75
  6. Step 6: Final answer
    x = 14,881.20

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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.