Home / 7,888.15-11,807.61-5,810.50

Finding the Fourth Proportional to 7,888.15, 11,807.61 and 5,810.50

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Solution

The fourth proportional to 7,888.15, 11,807.61 and 5,810.50 is: 8,697.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.15 : 11,807.61 = 5,810.50 : x
  2. Step 2: Convert to fraction form
    7,888.15/11,807.61 = 5,810.50/x
  3. Step 3: Cross multiply
    7,888.15x = 11,807.61 × 5,810.50
  4. Step 4: Simplify right side
    7,888.15x = 68,608,117.91
  5. Step 5: Solve for x
    x = 68,608,117.91/7,888.15
  6. Step 6: Final answer
    x = 8,697.62

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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.