Home / 8,875.72-12,246.24-6,513.76

Finding the Fourth Proportional to 8,875.72, 12,246.24 and 6,513.76

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Solution

The fourth proportional to 8,875.72, 12,246.24 and 6,513.76 is: 8,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.72 : 12,246.24 = 6,513.76 : x
  2. Step 2: Convert to fraction form
    8,875.72/12,246.24 = 6,513.76/x
  3. Step 3: Cross multiply
    8,875.72x = 12,246.24 × 6,513.76
  4. Step 4: Simplify right side
    8,875.72x = 79,769,068.26
  5. Step 5: Solve for x
    x = 79,769,068.26/8,875.72
  6. Step 6: Final answer
    x = 8,987.33

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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.