Home / 14,820.86-20,453.11-8,851.40

Finding the Fourth Proportional to 14,820.86, 20,453.11 and 8,851.40

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Solution

The fourth proportional to 14,820.86, 20,453.11 and 8,851.40 is: 12,215.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,820.86 : 20,453.11 = 8,851.40 : x
  2. Step 2: Convert to fraction form
    14,820.86/20,453.11 = 8,851.40/x
  3. Step 3: Cross multiply
    14,820.86x = 20,453.11 × 8,851.40
  4. Step 4: Simplify right side
    14,820.86x = 181,038,686.86
  5. Step 5: Solve for x
    x = 181,038,686.86/14,820.86
  6. Step 6: Final answer
    x = 12,215.13

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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.