Home / 8,039.60-12,071.52-6,565.40

Finding the Fourth Proportional to 8,039.60, 12,071.52 and 6,565.40

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Solution

The fourth proportional to 8,039.60, 12,071.52 and 6,565.40 is: 9,858.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,039.60 : 12,071.52 = 6,565.40 : x
  2. Step 2: Convert to fraction form
    8,039.60/12,071.52 = 6,565.40/x
  3. Step 3: Cross multiply
    8,039.60x = 12,071.52 × 6,565.40
  4. Step 4: Simplify right side
    8,039.60x = 79,254,357.41
  5. Step 5: Solve for x
    x = 79,254,357.41/8,039.60
  6. Step 6: Final answer
    x = 9,858.00

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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.