Home / 8,730.09-12,038.22-6,488.28

Finding the Fourth Proportional to 8,730.09, 12,038.22 and 6,488.28

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Solution

The fourth proportional to 8,730.09, 12,038.22 and 6,488.28 is: 8,946.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.09 : 12,038.22 = 6,488.28 : x
  2. Step 2: Convert to fraction form
    8,730.09/12,038.22 = 6,488.28/x
  3. Step 3: Cross multiply
    8,730.09x = 12,038.22 × 6,488.28
  4. Step 4: Simplify right side
    8,730.09x = 78,107,342.06
  5. Step 5: Solve for x
    x = 78,107,342.06/8,730.09
  6. Step 6: Final answer
    x = 8,946.91

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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.