Home / 15,955.38-22,018.60-8,881.80

Finding the Fourth Proportional to 15,955.38, 22,018.60 and 8,881.80

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Solution

The fourth proportional to 15,955.38, 22,018.60 and 8,881.80 is: 12,256.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.38 : 22,018.60 = 8,881.80 : x
  2. Step 2: Convert to fraction form
    15,955.38/22,018.60 = 8,881.80/x
  3. Step 3: Cross multiply
    15,955.38x = 22,018.60 × 8,881.80
  4. Step 4: Simplify right side
    15,955.38x = 195,564,696.71
  5. Step 5: Solve for x
    x = 195,564,696.71/15,955.38
  6. Step 6: Final answer
    x = 12,256.98

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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.