Home / 15,210.35-22,815.25-7,810.46

Finding the Fourth Proportional to 15,210.35, 22,815.25 and 7,810.46

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Solution

The fourth proportional to 15,210.35, 22,815.25 and 7,810.46 is: 11,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.35 : 22,815.25 = 7,810.46 : x
  2. Step 2: Convert to fraction form
    15,210.35/22,815.25 = 7,810.46/x
  3. Step 3: Cross multiply
    15,210.35x = 22,815.25 × 7,810.46
  4. Step 4: Simplify right side
    15,210.35x = 178,197,597.52
  5. Step 5: Solve for x
    x = 178,197,597.52/15,210.35
  6. Step 6: Final answer
    x = 11,715.55

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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.