Home / 19,163.18-26,445.14-10,779.68

Finding the Fourth Proportional to 19,163.18, 26,445.14 and 10,779.68

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Solution

The fourth proportional to 19,163.18, 26,445.14 and 10,779.68 is: 14,875.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.18 : 26,445.14 = 10,779.68 : x
  2. Step 2: Convert to fraction form
    19,163.18/26,445.14 = 10,779.68/x
  3. Step 3: Cross multiply
    19,163.18x = 26,445.14 × 10,779.68
  4. Step 4: Simplify right side
    19,163.18x = 285,070,041.48
  5. Step 5: Solve for x
    x = 285,070,041.48/19,163.18
  6. Step 6: Final answer
    x = 14,875.93

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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.