Home / 15,184.42-20,945.72-9,130.45

Finding the Fourth Proportional to 15,184.42, 20,945.72 and 9,130.45

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Solution

The fourth proportional to 15,184.42, 20,945.72 and 9,130.45 is: 12,594.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.42 : 20,945.72 = 9,130.45 : x
  2. Step 2: Convert to fraction form
    15,184.42/20,945.72 = 9,130.45/x
  3. Step 3: Cross multiply
    15,184.42x = 20,945.72 × 9,130.45
  4. Step 4: Simplify right side
    15,184.42x = 191,243,849.17
  5. Step 5: Solve for x
    x = 191,243,849.17/15,184.42
  6. Step 6: Final answer
    x = 12,594.74

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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.