Home / 8,385.47-12,583.49-4,690.11

Finding the Fourth Proportional to 8,385.47, 12,583.49 and 4,690.11

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Solution

The fourth proportional to 8,385.47, 12,583.49 and 4,690.11 is: 7,038.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.47 : 12,583.49 = 4,690.11 : x
  2. Step 2: Convert to fraction form
    8,385.47/12,583.49 = 4,690.11/x
  3. Step 3: Cross multiply
    8,385.47x = 12,583.49 × 4,690.11
  4. Step 4: Simplify right side
    8,385.47x = 59,017,928.83
  5. Step 5: Solve for x
    x = 59,017,928.83/8,385.47
  6. Step 6: Final answer
    x = 7,038.12

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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.