Home / 8,840.19-13,259.58-5,140.06

Finding the Fourth Proportional to 8,840.19, 13,259.58 and 5,140.06

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Solution

The fourth proportional to 8,840.19, 13,259.58 and 5,140.06 is: 7,709.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,840.19 : 13,259.58 = 5,140.06 : x
  2. Step 2: Convert to fraction form
    8,840.19/13,259.58 = 5,140.06/x
  3. Step 3: Cross multiply
    8,840.19x = 13,259.58 × 5,140.06
  4. Step 4: Simplify right side
    8,840.19x = 68,155,036.77
  5. Step 5: Solve for x
    x = 68,155,036.77/8,840.19
  6. Step 6: Final answer
    x = 7,709.68

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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.