Home / 13,779.56-20,637.12-10,072.46

Finding the Fourth Proportional to 13,779.56, 20,637.12 and 10,072.46

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Solution

The fourth proportional to 13,779.56, 20,637.12 and 10,072.46 is: 15,085.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.56 : 20,637.12 = 10,072.46 : x
  2. Step 2: Convert to fraction form
    13,779.56/20,637.12 = 10,072.46/x
  3. Step 3: Cross multiply
    13,779.56x = 20,637.12 × 10,072.46
  4. Step 4: Simplify right side
    13,779.56x = 207,866,565.72
  5. Step 5: Solve for x
    x = 207,866,565.72/13,779.56
  6. Step 6: Final answer
    x = 15,085.14

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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.