Home / 10,088.55-15,140.66-6,990.27

Finding the Fourth Proportional to 10,088.55, 15,140.66 and 6,990.27

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Solution

The fourth proportional to 10,088.55, 15,140.66 and 6,990.27 is: 10,490.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,088.55 : 15,140.66 = 6,990.27 : x
  2. Step 2: Convert to fraction form
    10,088.55/15,140.66 = 6,990.27/x
  3. Step 3: Cross multiply
    10,088.55x = 15,140.66 × 6,990.27
  4. Step 4: Simplify right side
    10,088.55x = 105,837,209.65
  5. Step 5: Solve for x
    x = 105,837,209.65/10,088.55
  6. Step 6: Final answer
    x = 10,490.82

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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.