Home / 15,989.06-22,065.51-8,916.86

Finding the Fourth Proportional to 15,989.06, 22,065.51 and 8,916.86

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Solution

The fourth proportional to 15,989.06, 22,065.51 and 8,916.86 is: 12,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.06 : 22,065.51 = 8,916.86 : x
  2. Step 2: Convert to fraction form
    15,989.06/22,065.51 = 8,916.86/x
  3. Step 3: Cross multiply
    15,989.06x = 22,065.51 × 8,916.86
  4. Step 4: Simplify right side
    15,989.06x = 196,754,953.17
  5. Step 5: Solve for x
    x = 196,754,953.17/15,989.06
  6. Step 6: Final answer
    x = 12,305.60

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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.