Home / 14,860.18-20,509.77-10,142.74

Finding the Fourth Proportional to 14,860.18, 20,509.77 and 10,142.74

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Solution

The fourth proportional to 14,860.18, 20,509.77 and 10,142.74 is: 13,998.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,860.18 : 20,509.77 = 10,142.74 : x
  2. Step 2: Convert to fraction form
    14,860.18/20,509.77 = 10,142.74/x
  3. Step 3: Cross multiply
    14,860.18x = 20,509.77 × 10,142.74
  4. Step 4: Simplify right side
    14,860.18x = 208,025,264.57
  5. Step 5: Solve for x
    x = 208,025,264.57/14,860.18
  6. Step 6: Final answer
    x = 13,998.84

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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.