Home / 17,345.60-26,018.40-10,779.20

Finding the Fourth Proportional to 17,345.60, 26,018.40 and 10,779.20

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Solution

The fourth proportional to 17,345.60, 26,018.40 and 10,779.20 is: 16,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,345.60 : 26,018.40 = 10,779.20 : x
  2. Step 2: Convert to fraction form
    17,345.60/26,018.40 = 10,779.20/x
  3. Step 3: Cross multiply
    17,345.60x = 26,018.40 × 10,779.20
  4. Step 4: Simplify right side
    17,345.60x = 280,457,537.28
  5. Step 5: Solve for x
    x = 280,457,537.28/17,345.60
  6. Step 6: Final answer
    x = 16,168.80

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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.