Home / 13,392.27-20,085.53-8,455.32

Finding the Fourth Proportional to 13,392.27, 20,085.53 and 8,455.32

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Solution

The fourth proportional to 13,392.27, 20,085.53 and 8,455.32 is: 12,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.27 : 20,085.53 = 8,455.32 : x
  2. Step 2: Convert to fraction form
    13,392.27/20,085.53 = 8,455.32/x
  3. Step 3: Cross multiply
    13,392.27x = 20,085.53 × 8,455.32
  4. Step 4: Simplify right side
    13,392.27x = 169,829,541.24
  5. Step 5: Solve for x
    x = 169,829,541.24/13,392.27
  6. Step 6: Final answer
    x = 12,681.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.