Home / 15,099.60-20,837.58-8,810.76

Finding the Fourth Proportional to 15,099.60, 20,837.58 and 8,810.76

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Solution

The fourth proportional to 15,099.60, 20,837.58 and 8,810.76 is: 12,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,099.60 : 20,837.58 = 8,810.76 : x
  2. Step 2: Convert to fraction form
    15,099.60/20,837.58 = 8,810.76/x
  3. Step 3: Cross multiply
    15,099.60x = 20,837.58 × 8,810.76
  4. Step 4: Simplify right side
    15,099.60x = 183,594,916.36
  5. Step 5: Solve for x
    x = 183,594,916.36/15,099.60
  6. Step 6: Final answer
    x = 12,158.93

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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.