Home / 14,816.21-20,434.56-12,585.47

Finding the Fourth Proportional to 14,816.21, 20,434.56 and 12,585.47

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Solution

The fourth proportional to 14,816.21, 20,434.56 and 12,585.47 is: 17,357.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,816.21 : 20,434.56 = 12,585.47 : x
  2. Step 2: Convert to fraction form
    14,816.21/20,434.56 = 12,585.47/x
  3. Step 3: Cross multiply
    14,816.21x = 20,434.56 × 12,585.47
  4. Step 4: Simplify right side
    14,816.21x = 257,178,541.84
  5. Step 5: Solve for x
    x = 257,178,541.84/14,816.21
  6. Step 6: Final answer
    x = 17,357.92

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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.