Home / 8,701.20-12,003.93-5,870.40

Finding the Fourth Proportional to 8,701.20, 12,003.93 and 5,870.40

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Solution

The fourth proportional to 8,701.20, 12,003.93 and 5,870.40 is: 8,098.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.20 : 12,003.93 = 5,870.40 : x
  2. Step 2: Convert to fraction form
    8,701.20/12,003.93 = 5,870.40/x
  3. Step 3: Cross multiply
    8,701.20x = 12,003.93 × 5,870.40
  4. Step 4: Simplify right side
    8,701.20x = 70,467,870.67
  5. Step 5: Solve for x
    x = 70,467,870.67/8,701.20
  6. Step 6: Final answer
    x = 8,098.64

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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.