Home / 14,158.37-19,530.47-8,778.35

Finding the Fourth Proportional to 14,158.37, 19,530.47 and 8,778.35

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Solution

The fourth proportional to 14,158.37, 19,530.47 and 8,778.35 is: 12,109.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158.37 : 19,530.47 = 8,778.35 : x
  2. Step 2: Convert to fraction form
    14,158.37/19,530.47 = 8,778.35/x
  3. Step 3: Cross multiply
    14,158.37x = 19,530.47 × 8,778.35
  4. Step 4: Simplify right side
    14,158.37x = 171,445,159.78
  5. Step 5: Solve for x
    x = 171,445,159.78/14,158.37
  6. Step 6: Final answer
    x = 12,109.11

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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.