Home / 15,207.02-20,985.48-8,492.77

Finding the Fourth Proportional to 15,207.02, 20,985.48 and 8,492.77

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Solution

The fourth proportional to 15,207.02, 20,985.48 and 8,492.77 is: 11,719.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207.02 : 20,985.48 = 8,492.77 : x
  2. Step 2: Convert to fraction form
    15,207.02/20,985.48 = 8,492.77/x
  3. Step 3: Cross multiply
    15,207.02x = 20,985.48 × 8,492.77
  4. Step 4: Simplify right side
    15,207.02x = 178,224,750.05
  5. Step 5: Solve for x
    x = 178,224,750.05/15,207.02
  6. Step 6: Final answer
    x = 11,719.90

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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.